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1.seamless pipe:
size: Dia10mm-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
2.straight weld tubing,galvanized pipe;
size: Dia10mm-630mm
material: Q195-Q235 16Mn Q345 A, B
3.welding square pipe/rectangular tube,galvanized square and
rectangular pipe.
Size: Dia12mm-400mm
material: Q195-Q235
4.screw seam two submerged-arc welding pipe
size: Dia159mm-2200mm
material: Q235B Q345B
seamless pipe
