Qhia cov khoom:
Kev piav qhia:
Ib-lub sij hawm siv qhov ncauj qhov ntswg Kev nyab xeeb ua pa
3-txheej pom tshuab
Daim npog qhov ncauj ≤49PA / CM Ua pa du lug
KHOOM HIGHLIGHTS :
Ua tsis taus pa ua pa
Lub teeb ua pa, ua tsis taus pa, tsis muaj ntxhiab tsw ntxhiab.
Kho lub ntsej muag tuaj yeem haum ntsej muag
Ib rab koob yuav tuaj yeem ua lub ntsej muag, kho lub siab tsis yooj yim kom poob tawm
High-bullet qhwv ntsej, ob npaug ntawm elasticity.
Tsawg dua kev nkag siab ntawm lub siab hauv pob ntseg
Cov ntsiab lus me me nyob txhua qhov chaw sib ze
Peb-txheej tiv thaiv