1) stainless steel welded pipe/tube: Standards:astm a249, astm a269, astm a270, astm a312, astm a554, Material:304, 304l, 316, 316l, 201, 202, 409l, 430, etc Out diameter:2 - 2000mm Wall thickness:0.2 - 20mm 2) stainless steel seamless pipe/tube: 4) carbon steel seamless pipe/tube: Standard:astm a53, a106, a179, a192, din2391, din17175, api 5l Material:gr.A, gr.B, x42, x52, x65, x70, st37, st52 etc Out diameter:10.3 - 610mm Wt:1.73 - 40mm 5) alloy steel pipe/tube Standard:astm a335, astm 213 Material:cr5mo, 15crmo, 1.25cr0.5mo, cr9mo, 12cr1mov, 12cr2mo, t91 Size:¡ì¶10.3-1219¡¨¢1.0-101.6 6) high-precision seamless sanitary pipe: Standard:astm a270, din 11850, etc Material:304, 304l, 316, 316l Spec:19.1*1.5mm - 159mm*1.5mm, length:4m, 6m, 12m 7) sanitary pipe fittings: Elbow, tee, union (liner, male, nut), reducer, Solid end cap, clamp, ferrule, tube support, etc. Standard packing