Huab Cua Dub Txiv Hmab
Tshawb nrhiav peb cov khoom lag luam ntau ntawm cov khoom lag luam zoo uas tau raws cov qauv kev lag luamASTM A53, Astm
A106, thiabASTM A312Cov. Peb qhov kev xaiv dav dav suav nrog ntau hom xws liIb Kawg Xov Xwm, ob qho tib si sib npaug
Threaded, ntev-luv threaded,Kc nipple, thiab ib lub txiv mis kaw. Tshawb peb cov ntau thiab nrhiav tau zoo meej
daws rau koj cov kev xav tau.
Sau koj cov lus ntawm no thiab xa mus rau peb