steel pipe

الوصف

1.seamless pipe: size: &#**6;*0mm-&#**6;**0mm material: *0# - *5# Q**5 A, B, C, D *7SiMn *0Cr *0CrMn *0CrMn *0Mn executive standard: GB***2 (structural pipe) GB***3 (fluid pipe) GB******9 (boiler pipe) GB******5 ( boiler pipe for high pressure) GB********0 (fertilizer special pipe) GB******8 (petroleum cracked pipe ) DIN*******5 (German standard) ST*5.***1 SA**6B etc,foreign standard. 2.straight weld tubing,galvanized pipe; size: &#**6;*0mm-&#**6;**0mm material: Q***-Q**5 *6Mn Q**5 A, B 3.welding square pipe/rectangular tube,galvanized square and rectangular pipe. Size: &#**6;*2mm-&#**6;**0mm material: Q***-Q**5 4.screw seam two submerged-arc welding pipe size: &#**6;**9mm-&#**6;***0mm material: Q**5B Q**5B