we are a professional manufacturer of specialized pipe series products from china. size from 1/2"-72"thickness SCH 10 - SCH 160 / STD / SGP / XS / XXSstandard ASTM / DIN / JIS / BS / GOST and so onmaterial carbon steel ( seam & seamless ),alloy steel, stainless steel, X-grade steelpackaging wooden cases , pallets and the way as customers requiredproduct catalogue steel pipe, oil casing pipe, elbow, tee, reducer, cap, flange, and so on