astm a312 قابل تنظیم خرید محصولات با کیفیت بالا
ASTM A312 /A312M ASME SA312 Covers seamless, straight-seam welded, and heavily cold worked welded austenitic stainless-steel pipe intended for high-temperature and general corrosive service. ASTM A312 /A312M ASME SA312 Grades TP304, TP304L. بیشتر