... -30days 4)Grade:ASTM,DIN,BS,AISI Our company supply of seamless steel pipe, alloy steel pipe, stainless steel pipe, ... standard GB BS AMSE ANSI DIN JIS Our company operate of oil and oil line pipe casing, Not only the supply ... steel round bar, square steel, angle steel and special type of steel 6316F, 304F, 303F, 303Cu, 430F, 420F and other ... L, 316Ti, 316,304 L, 304, 301,202,201, etc. API 5L steel pipe