seamless pipe: size: Dia.10mm-630mm straight weld tubing,galvanized pipe; size: Dia.10mm--630mm material: Q195-Q235 16Mn Q345 A

1.seamless pipe: size: Dia.10mm-630mm material: 10# - 45# Q345 A, B, C, D 27SiMn 40Cr 40CrMn 20CrMn 30Mn executive standard: GB8162 (structural pipe) GB8163 (fluid pipe) GB3087-99 (boiler pipe) GB5310-95 ( boiler pipe for high pressure) GB6479-2000 (fertilizer special pipe) GB9948-88 (petroleum cracked pipe) DIN17175-95 (German standard) ST45.8111 SA106B etc,foreign standard. 2.straight weld tubing,galvanized pipe; size: Dia.10mm--630mm material: Q195-Q235 16Mn Q345 A, B 3.welding square pipe/rectangular tube,galvanized square and rectangular pipe. Size: Dia.12mm-400mm material: Q195-Q235

seamless pipe, welded pipe, square pipe