Qhia txog USA Hose Clamps, qhov kev daws teeb meem zoo tshaj plaws rau txhua yam koj xav tau kom nruj thiab kaw. Lub hose clamp no yog tsim los ntawm cov khoom siv high-durometer nrog lub qhov los ntawm qhov thiab tsim los muab kev ua haujlwm zoo thiab kev ntseeg siab tsis muaj qhov sib piv. Lub tsev riveted ua kom ntseeg tau tias muaj kev ruaj ntseg, nruj, ua rau nws yog qhov kev xaiv zoo tshaj plaws rau ntau yam kev siv.
12.7mm Tebchaws Meskas Qhov LojCov Yeeb Nkab Hose Clipmuaj ob hom ntsia hlau - cov ntsia hlau ib txwm thiab cov ntsia hlau tiv thaiv rov qab, muab kev hloov pauv thiab kev hloov pauv kom tau raws li koj cov kev xav tau tshwj xeeb. Txawm hais tias koj xav tau kev daws teeb meem txheem lossis kev ruaj ntseg ntxiv ntawm cov ntsia hlau tiv thaiv kev ncaws rov qab, cov khoom no muaj rau koj.
| Khoom siv | W1 | W2 | W4 | W5 |
| Cov hlua khi | Hlau galvanized | 200ss/300ss | 300ss | 316 |
| Lub plhaub hoop | Hlau galvanized | 200ss/300ss | 300ss | 316 |
| Ntsia hlau | Hlau galvanized | Hlau galvanized | 300ss | 316 |
Tebchaws USA Hose Clampstau tsim los rau cov qauv siab tshaj plaws los muab kev daws teeb meem txhim khu kev qha thiab kav ntev rau ntau yam kev sib khi thiab kev nruj. Nws cov qauv ruaj khov thiab cov ntaub ntawv zoo ua rau nws tsim nyog siv rau hauv cov chaw nyuaj, ua kom koj cov kev sib txuas ruaj ntseg thiab tsis muaj qhov xau.
Qhov nolub clamp hoseNws yog tsim los kom yooj yim rau siv thiab tuaj yeem yooj yim teeb tsa thiab tshem tawm raws li qhov xav tau. Nws qhov kev hloov pauv ua rau nws yog ib qho khoom siv ntxiv rau txhua yam cuab yeej, txawm tias rau kev siv hauv kev lag luam lossis rau cov haujlwm DIY hauv tsev.
Thaum nws los txog rau kev ntseeg tau thiab kev ua tau zoo, Tebchaws Meskas Qhov Loj Hose Clip Clamps sawv tawm ua qhov kev xaiv saum toj kawg nkaus. Nws qhov kev tsim kho precision thiab kev tsim kho ruaj khov ua rau nws yog qhov kev xaiv rau kev ruaj ntseg hoses, kav dej thiab lwm yam kev sib txuas.
Tag nrho hauv txhua qhov, Tebchaws Meskas Qhov Loj Hose Clip Clamps yog qhov kev daws teeb meem zoo rau txhua yam koj xav tau kev zawm thiab kaw. Cov khoom no muaj tus nqi zoo heev thiab kev ua tau zoo nrog nws cov qauv zoo, cov kev xaiv ntsia hlau ntau yam thiab kev tsim qauv yooj yim rau tus neeg siv. Txawm hais tias koj ua haujlwm rau ib qhov project tshaj lij lossis daws teeb meem kev txhim kho hauv tsev, koj tuaj yeem ntseeg siab rau Tebchaws Meskas cov hose clamps los muab kev ntseeg siab thiab kev ua haujlwm zoo uas koj xav tau.
| Cov Lus Qhia Tshwj Xeeb | Txoj kab uas hla (hli) | Kev Teeb tsa Torque (Nm) | Khoom siv | Qhov Chaw Tiav | Bandwidth (hli) | Tuab (hli) |
| 304 Txhua Hlau 14-27 | 14-27 | 12Nm | 304 stainless hlau | Cov txheej txheem txhuam hniav | 12.7 | 0.65 |
| 304 Txhua Hlau 18-32 | 18-32 | 12Nm | 304 stainless hlau | Cov txheej txheem txhuam hniav | 12.7 | 0.65 |
| 304 Txhua Hlau 21-38 | 21-38 | 12Nm | 304 stainless hlau | Cov txheej txheem txhuam hniav | 12.7 | 0.65 |
| 304 Txhua Hlau 21-44 | 21-44 | 12Nm | 304 stainless hlau | Cov txheej txheem txhuam hniav | 12.7 | 0.65 |
| 304 Txhua Hlau 27-51 | 27-51 | 12Nm | 304 stainless hlau | Cov txheej txheem txhuam hniav | 12.7 | 0.65 |
| 304 Txhua Hlau 33-57 | 33-57 | 12Nm | 304 stainless hlau | Cov txheej txheem txhuam hniav | 12.7 | 0.65 |
| 304 Txhua Hlau 40-63 | 40-63 | 12Nm | 304 stainless hlau | Cov txheej txheem txhuam hniav | 12.7 | 0.65 |
| 304 Txhua Hlau 46-70 | 46-70 | 12Nm | 304 stainless hlau | Cov txheej txheem txhuam hniav | 12.7 | 0.65 |
| 304 Txhua Hlau 52-76 | 52-76 | 12Nm | 304 stainless hlau | Cov txheej txheem txhuam hniav | 12.7 | 0.65 |
| 304 Txhua Hlau 59-82 | 59-82 | 12Nm | 304 stainless hlau | Cov txheej txheem txhuam hniav | 12.7 | 0.65 |
| 304 Txhua Hlau 65-89 | 65-89 | 12Nm | 304 stainless hlau | Cov txheej txheem txhuam hniav | 12.7 | 0.65 |
| 304 Tag Nrho Cov Hlau 72-95 | 72-95 | 12Nm | 304 stainless hlau | Cov txheej txheem txhuam hniav | 12.7 | 0.65 |
| 304 Txhua Hlau 78-101 | 78-101 | 12Nm | 304 stainless hlau | Cov txheej txheem txhuam hniav | 12.7 | 0.65 |
| 304 Tag Nrho Cov Hlau 84-108 | 84-108 | 12Nm | 304 stainless hlau | Cov txheej txheem txhuam hniav | 12.7 | 0.65 |
| 304 Tag Nrho Cov Hlau 91-114 | 91-114 | 12Nm | 304 stainless hlau | Cov txheej txheem txhuam hniav | 12.7 | 0.65 |
| 304 Txhua Hlau 105-127 | 105-127 | 12Nm | 304 stainless hlau | Cov txheej txheem txhuam hniav | 12.7 | 0.65 |
| 304 Txhua Hlau 118-140 | 118-140 | 12Nm | 304 stainless hlau | Cov txheej txheem txhuam hniav | 12.7 | 0.65 |
| 304 Txhua Hlau 130-152 | 130-152 | 12Nm | 304 stainless hlau | Cov txheej txheem txhuam hniav | 12.7 | 0.65 |
| 304 Txhua Hlau 141-165 | 141-165 | 12Nm | 304 stainless hlau | Cov txheej txheem txhuam hniav | 12.7 | 0.65 |
| 304 Txhua Hlau 155-178 | 155-178 | 12Nm | 304 stainless hlau | Cov txheej txheem txhuam hniav | 12.7 | 0.65 |
| 304 Txhua Hlau 175-197 | 175-197 | 12Nm | 304 stainless hlau | Cov txheej txheem txhuam hniav | 12.7 | 0.65 |
| 304 Txhua Hlau 194-216 | 194-216 | 12Nm | 304 stainless hlau | Cov txheej txheem txhuam hniav | 12.7 | 0.65 |
| 304 Txhua Hlau 213-235 | 213-235 | 12Nm | 304 stainless hlau | Cov txheej txheem txhuam hniav | 12.7 | 0.65 |
| 304 Txhua Hlau 232-254 | 232-254 | 12Nm | 304 stainless hlau | Cov txheej txheem txhuam hniav | 12.7 | 0.65 |
| 304 Txhua Hlau 251-273 | 251-273 | 12Nm | 304 stainless hlau | Cov txheej txheem txhuam hniav | 12.7 | 0.65 |
| 304 Txhua Hlau 270-292 | 270-292 | 12Nm | 304 stainless hlau | Cov txheej txheem txhuam hniav | 12.7 | 0.65 |
| 304 Txhua Hlau 289-311 | 289-311 | 12Nm | 304 stainless hlau | Cov txheej txheem txhuam hniav | 12.7 | 0.65 |
| 304 Txhua Hlau 0-100 | 0-100 | 12Nm | 304 stainless hlau | Cov txheej txheem txhuam hniav | 12.7 | 0.65 |
| 304 Txhua Hlau 0-150 | 0-150 | 12Nm | 304 stainless hlau | Cov txheej txheem txhuam hniav | 12.7 | 0.65 |
| 304 Txhua Hlau 0-200 | 0-200 | 12Nm | 304 stainless hlau | Cov txheej txheem txhuam hniav | 12.7 | 0.65 |
| 304 Tag Nrho Cov Hlau 75-235 | 75-235 | 12Nm | 304 stainless hlau | Cov txheej txheem txhuam hniav | 12.7 | 0.65 |
| 304 Txhua Hlau 0-250 | 0-250 | 12Nm | 304 stainless hlau | Cov txheej txheem txhuam hniav | 12.7 | 0.65 |
| 304 Txhua Hlau 0-300 | 0-300 | 12Nm | 304 stainless hlau | Cov txheej txheem txhuam hniav | 12.7 | 0.65 |
| 304 Txhua Hlau 0-350 | 0-350 | 12Nm | 304 stainless hlau | Cov txheej txheem txhuam hniav | 12.7 | 0.65 |
| 304 Txhua Hlau 0-400 | 0-400 | 12Nm | 304 stainless hlau | Cov txheej txheem txhuam hniav | 12.7 | 0.65 |
| 304 Txhua Hlau 0-450 | 0-450 | 12Nm | 304 stainless hlau | Cov txheej txheem txhuam hniav | 12.7 | 0.65 |
| 304 Txhua Hlau 0-500 | 0-500 | 12Nm | 304 stainless hlau | Cov txheej txheem txhuam hniav | 12.7 | 0.65 |
| 304 Txhua Hlau 0-550 | 0-550 | 12Nm | 304 stainless hlau | Cov txheej txheem txhuam hniav | 12.7 | 0.65 |
| 304 Txhua Hlau 0-600 | 0-600 | 12Nm | 304 stainless hlau | Cov txheej txheem txhuam hniav | 12.7 | 0.65 |
| 201 Txhua yam hlau 14-27 | 14.27 | 12Nm | 201 Txhua Hlau | Cov txheej txheem txhuam hniav | 12.7 | 0.65 |
| 201 Txhua Hlau 18-32 | 18-32 | 12Nm | 201 Txhua Hlau | Cov txheej txheem txhuam hniav | 12.7 | 0.65 |
| 201 Txhua yam hlau 21-38 | 21-38 | 12Nm | 201 Txhua Hlau | Cov txheej txheem txhuam hniav | 12.7 | 0.65 |
| 201 Txhua yam hlau 21-44 | 21-44 | 12Nm | 201 Txhua Hlau | Cov txheej txheem txhuam hniav | 12.7 | 0.65 |
| 201 Txhua yam hlau 27-51 | 27-51 | 12Nm | 201 Txhua Hlau | Cov txheej txheem txhuam hniav | 12.7 | 0.65 |
| 201 Txhua yam hlau 33-57 | 33-57 | 12Nm | 201 Txhua Hlau | Cov txheej txheem txhuam hniav | 12.7 | 0.65 |
| 201 Txhua Hlau 40-63 | 40-63 | 12Nm | 201 Txhua Hlau | Cov txheej txheem txhuam hniav | 12.7 | 0.65 |
| 201 Txhua Hlau 46-70 | 46-70 | 12Nm | 201 Txhua Hlau | Cov txheej txheem txhuam hniav | 12.7 | 0.65 |
| 201 Txhua Hlau 52-76 | 52-76 | 12Nm | 201 Txhua Hlau | Cov txheej txheem txhuam hniav | 12.7 | 0.65 |
| 201 Txhua yam hlau 59-82 | 59-82 | 12Nm | 201 Txhua Hlau | Cov txheej txheem txhuam hniav | 12.7 | 0.65 |
| 201 Txhua yam hlau 65-89 | 65-89 | 12Nm | 201 Txhua Hlau | Cov txheej txheem txhuam hniav | 12.7 | 0.65 |
| 201 Txhua yam hlau 72-95 | 72-95 | 12Nm | 201 Txhua Hlau | Cov txheej txheem txhuam hniav | 12.7 | 0.65 |
| 201 Txhua yam hlau 78-101 | 78-101 | 12Nm | 201 Txhua Hlau | Cov txheej txheem txhuam hniav | 12.7 | 0.65 |
| 201 Txhua Hlau 84-108 | 84-108 | 12Nm | 201 Txhua Hlau | Cov txheej txheem txhuam hniav | 12.7 | 0.65 |
| 201 Txhua yam hlau 91-114 | 91-114 | 12Nm | 201 Txhua Hlau | Cov txheej txheem txhuam hniav | 12.7 | 0.65 |
| 201 Txhua Hlau 105-127 | 105-127 | 12Nm | 201 Txhua Hlau | Cov txheej txheem txhuam hniav | 12.7 | 0.65 |
| 201 Txhua yam hlau 118-140 | 118-140 | 12Nm | 201 Txhua Hlau | Cov txheej txheem txhuam hniav | 12.7 | 0.65 |
| 201 Txhua yam hlau 130-152 | 130-152 | 12Nm | 201 Txhua Hlau | Cov txheej txheem txhuam hniav | 12.7 | 0.65 |
| 201 Txhua Hlau 141-165 | 141-165 | 12Nm | 201 Txhua Hlau | Cov txheej txheem txhuam hniav | 12.7 | 0.65 |
| 201 Txhua yam hlau 155-178 | 155-178 | 12Nm | 201 Txhua Hlau | Cov txheej txheem txhuam hniav | 12.7 | 0.65 |
| 201 Txhua yam hlau 175-197 | 175-197 | 12Nm | 201 Txhua Hlau | Cov txheej txheem txhuam hniav | 12.7 | 0.65 |
| 201 Txhua yam hlau 194-216 | 194-216 | 12Nm | 201 Txhua Hlau | Cov txheej txheem txhuam hniav | 12.7 | 0.65 |
| 201 Txhua yam hlau 213-235 | 213-235 | 12Nm | 201 Txhua Hlau | Cov txheej txheem txhuam hniav | 12.7 | 0.65 |
| 201 Txhua yam hlau 232-254 | 232-254 | 12Nm | 201 Txhua Hlau | Cov txheej txheem txhuam hniav | 12.7 | 0.65 |
| 201 Txhua yam hlau 251-273 | 251-273 | 12Nm | 201 Txhua Hlau | Cov txheej txheem txhuam hniav | 12.7 | 0.65 |
| 201 Txhua yam hlau 270-292 | 270-292 | 12Nm | 201 Txhua Hlau | Cov txheej txheem txhuam hniav | 12.7 | 0.65 |
| 201 Txhua yam hlau 289-311 | 289-311 | 12Nm | 201 Txhua Hlau | Cov txheej txheem txhuam hniav | 12.7 | 0.65 |
| 201 Txhua yam hlau 0-100 | 0-100 | 12Nm | 201 Txhua Hlau | Cov txheej txheem txhuam hniav | 12.7 | 0.65 |
| 201 Txhua yam hlau 0-150 | 0-150 | 12Nm | 201 Txhua Hlau | Cov txheej txheem txhuam hniav | 12.7 | 0.65 |
| 201 Txhua yam hlau 0-200 | 0-200 | 12Nm | 201 Txhua Hlau | Cov txheej txheem txhuam hniav | 12.7 | 0.65 |
| 201 Txhua Hlau 75-235 | 75-235 | 12Nm | 201 Txhua Hlau | Cov txheej txheem txhuam hniav | 12.7 | 0.65 |
| 201 Txhua yam hlau 0-250 | 0-250 | 12Nm | 201 Txhua Hlau | Cov txheej txheem txhuam hniav | 12.7 | 0.65 |
| 201 Txhua yam hlau 0-300 | 0-300 | 12Nm | 201 Txhua Hlau | Cov txheej txheem txhuam hniav | 12.7 | 0.65 |
| 201 Txhua yam hlau 0-350 | 0-350 | 12Nm | 201 Txhua Hlau | Cov txheej txheem txhuam hniav | 12.7 | 0.65 |
| 201 Txhua yam hlau 0-400 | 0-400 | 12Nm | 201 Txhua Hlau | Cov txheej txheem txhuam hniav | 12.7 | 0.65 |
| 201 Txhua yam hlau 0-450 | 0-450 | 12Nm | 201 Txhua Hlau | Cov txheej txheem txhuam hniav | 12.7 | 0.65 |
| 201 Txhua yam hlau 0-500 | 0-500 | 12Nm | 201 Txhua Hlau | Cov txheej txheem txhuam hniav | 12.7 | 0.65 |
| 201 Txhua Hlau 0-550 | 0-550 | 12Nm | 201 Txhua Hlau | Cov txheej txheem txhuam hniav | 12.7 | 0.65 |
| 201 Txhua yam hlau 0-600 | 0-600 | 12Nm | 201 Txhua Hlau | Cov txheej txheem txhuam hniav | 12.7 | 0.65 |
| 201 Ib nrab hlau 14-27 | 14-27 | 12Nm | 201 Semi-hlau | Cov txheej txheem txhuam hniav | 12.7 | 0.65 |
| 201 Ib nrab hlau 18-32 | 18-32 | 12Nm | 201 Semi-hlau | Cov txheej txheem txhuam hniav | 12.7 | 0.65 |
| 201 Ib nrab hlau 21-38 | 21-38 | 12Nm | 201 Semi-hlau | Cov txheej txheem txhuam hniav | 12.7 | 0.65 |
| 201 Ib nrab hlau 21-44 | 21-44 | 12Nm | 201 Semi-hlau | Cov txheej txheem txhuam hniav | 12.7 | 0.65 |
| 201 Ib nrab hlau 27-51 | 27-51 | 12Nm | 201 Semi-hlau | Cov txheej txheem txhuam hniav | 12.7 | 0.65 |
| 201 Ib nrab hlau 33-57 | 33-57 | 12Nm | 201 Semi-hlau | Cov txheej txheem txhuam hniav | 12.7 | 0.65 |
| 201 Ib nrab hlau 40-63 | 40-63 | 12Nm | 201 Semi-hlau | Cov txheej txheem txhuam hniav | 12.7 | 0.65 |
| 201 Ib nrab hlau 46-70 | 46-70 | 12Nm | 201 Semi-hlau | Cov txheej txheem txhuam hniav | 12.7 | 0.65 |
| 201 Ib nrab hlau 52-76 | 52-76 | 12Nm | 201 Semi-hlau | Cov txheej txheem txhuam hniav | 12.7 | 0.65 |
| 201 Ib nrab hlau 59-82 | 59-82 | 12Nm | 201 Semi-hlau | Cov txheej txheem txhuam hniav | 12.7 | 0.65 |
| 201 Ib nrab hlau 65-89 | 65-89 | 12Nm | 201 Semi-hlau | Cov txheej txheem txhuam hniav | 12.7 | 0.65 |
| 201 Semi-hlau 72-95 | 72-95 | 12Nm | 201 Semi-hlau | Cov txheej txheem txhuam hniav | 12.7 | 0.65 |
| 201 Ib nrab hlau 78-101 | 78-101 | 12Nm | 201 Semi-hlau | Cov txheej txheem txhuam hniav | 12.7 | 0.65 |
| 201 Semi-hlau 84-108 | 84-108 | 12Nm | 201 Semi-hlau | Cov txheej txheem txhuam hniav | 12.7 | 0.65 |
| 201 Semi-hlau 91-114 | 91-114 | 12Nm | 201 Semi-hlau | Cov txheej txheem txhuam hniav | 12.7 | 0.65 |
| 201 Ib nrab hlau 105-127 | 105-127 | 12Nm | 201 Semi-hlau | Cov txheej txheem txhuam hniav | 12.7 | 0.65 |
| 201 Ib nrab hlau 118-140 | 118-140 | 12Nm | 201 Semi-hlau | Cov txheej txheem txhuam hniav | 12.7 | 0.65 |
| 201 Ib nrab hlau 130-152 | 130-152 | 12Nm | 201 Semi-hlau | Cov txheej txheem txhuam hniav | 12.7 | 0.65 |
| 201 Semi-hlau 141-165 | 141-165 | 12Nm | 201 Semi-hlau | Cov txheej txheem txhuam hniav | 12.7 | 0.65 |
| 201 Ib nrab hlau 155-178 | 155-178 | 12Nm | 201 Semi-hlau | Cov txheej txheem txhuam hniav | 12.7 | 0.65 |
| 201 Ib nrab hlau 175-197 | 175-197 | 12Nm | 201 Semi-hlau | Cov txheej txheem txhuam hniav | 12.7 | 0.65 |
| 201 Semi-hlau 194-216 | 194-216 | 12Nm | 201 Semi-hlau | Cov txheej txheem txhuam hniav | 12.7 | 0.65 |
| 201 Ib nrab hlau 213-235 | 213-235 | 12Nm | 201 Semi-hlau | Cov txheej txheem txhuam hniav | 12.7 | 0.65 |
| 201 Ib nrab hlau 232-254 | 232-254 | 12Nm | 201 Semi-hlau | Cov txheej txheem txhuam hniav | 12.7 | 0.65 |
| 201 Ib nrab hlau 251-273 | 251-273 | 12Nm | 201 Semi-hlau | Cov txheej txheem txhuam hniav | 12.7 | 0.65 |
| 201 Ib nrab hlau 270-292 | 270-292 | 12Nm | 201 Semi-hlau | Cov txheej txheem txhuam hniav | 12.7 | 0.65 |
| 201 Semi-hlau 289-311 | 289-311 | 12Nm | 201 Semi-hlau | Cov txheej txheem txhuam hniav | 12.7 | 0.65 |
| 201 Ib nrab hlau 0-100 | 0-100 | 12Nm | 201 Semi-hlau | Cov txheej txheem txhuam hniav | 12.7 | 0.65 |
| 201 Ib nrab hlau 0-150 | 0-150 | 12Nm | 201 Semi-hlau | Cov txheej txheem txhuam hniav | 12.7 | 0.65 |
| 201 Ib nrab hlau 0-200 | 0-200 | 12Nm | 201 Semi-hlau | Cov txheej txheem txhuam hniav | 12.7 | 0.65 |
| 201 Semi-hlau 75-235 | 75-235 | 12Nm | 201 Semi-hlau | Cov txheej txheem txhuam hniav | 12.7 | 0.65 |
| 201 Ib nrab hlau 0-250 | 0-250 | 12Nm | 201 Semi-hlau | Cov txheej txheem txhuam hniav | 12.7 | 0.65 |
| 201 Ib nrab hlau 0-300 | 0-300 | 12Nm | 201 Semi-hlau | Cov txheej txheem txhuam hniav | 12.7 | 0.65 |
| 201 Ib nrab hlau 0-350 | 0-350 | 12Nm | 201 Semi-hlau | Cov txheej txheem txhuam hniav | 12.7 | 0.65 |
| 201 Ib nrab hlau 0-400 | 0-400 | 12Nm | 201 Semi-hlau | Cov txheej txheem txhuam hniav | 12.7 | 0.65 |
| 201 Ib nrab hlau 0-450 | 0-450 | 12Nm | 201 Semi-hlau | Cov txheej txheem txhuam hniav | 12.7 | 0.65 |
| 201 Ib nrab hlau 0-500 | 0-500 | 12Nm | 201 Semi-hlau | Cov txheej txheem txhuam hniav | 12.7 | 0.65 |
| 201 Ib nrab hlau 0-550 | 0-550 | 12Nm | 201 Semi-hlau | Cov txheej txheem txhuam hniav | 12.7 | 0.65 |
| 201 Ib nrab hlau 0-600 | 0-600 | 12Nm | 201 Semi-hlau | Cov txheej txheem txhuam hniav | 12.7 | 0.65 |
| Kho tau raws li koj xav tau | 1 | 12Nm | 201 Semi-hlau | Cov txheej txheem txhuam hniav | 12.7 | 0.65 |
Ntau yam (tsis yog rau ntawm cov raj kheej xwb, tab sis kuj rau ntawm cov khoom plaub fab)
Ntau yam kev siv, lub zog torsional sib xws. Xauv ruaj khov, kev sib txuas siab thiab kev sib khi zoo, ntau yam kev hloov kho loj.
Kev lag luam tsheb, Khoom noj khoom haus tshuab tshuaj lom neeg (Siv dav hauv ntau yam lag luam xws li tsheb, maus taus, rub, tsheb kho tshuab thiab khoom siv hauv kev lag luam, Roj Circuit, dej channel, roj txoj kev kom ua rau cov kav dej sib txuas ruaj khov dua)