Lus piav qhia luv luv:

Stanadard: ASME B16.47 SERIES A (MSS SP44) Siab: CLASS 150,300,600,900 Loj: 12″-60″ Hom: Vuam Neck, Dig Muag Khoom: CS A105 / SA 150N; SS304 / 304L / 316 / 316L / Duplex SS Txheej: Cov roj xeb pov thawj; Xim dub / daj; Galvanized; Epoxy txheej