Kev xaiv ntawmUPN(Tapered Flange) thiabUPE(Parallel Flange) cov kav dej yog qhov teeb meem tseem ceeb hauv kev tsim cov hlau tsim kho. Txawm hais tias lawv yog ob qho tib si tseem ceeb uas nqa khoom hnyav, qhov sib txawv ntawm geometric thiab mechanical txhais tau tias qhov chaw uas lawv tsim nyog dua hauv kev ua haujlwm engineering.
Pawg Neeg Muaj Koob Muaj Npe
Chaw Nyob
Kangsheng kev lag luam tsim kho cheeb tsam,
Wuqing koog tsev kawm ntawv, Tianjin nroog, Suav.
Cov sijhawm
Hnub Monday-Hnub Sunday: Kev Pabcuam 24-teev
Lub sijhawm tshaj tawm: Tsib Hlis-02-2026
