قیمت پایین astm a312 دوام
ASTM A312 TP304/304L|TP316/316L Stainless Steel Pipe. Stainless steel pipe ASTM A312 has 4 main grades TP304/304L, TP316/316L. TP304/TP304L and TP347 are included in ASME pressure vessel code and the Chemical Plant and Refinery Piping Code, These steel tubes are safe to be used in temperatures as low as −425 °F [−250 °C] without …