1. seamless pipe

Size: dia 10mm-630mm

Material: 10#-45#, Q345A/ 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 ) , ST45.8, ASTM 106B etc. foreign standard

2. straight weld tubing, galvanized pipe

Size: dia 10mm-630mm

Material: Q195-Q235, 16Mn, Q345A/ B

3. welding square pipe/ rectangular tube/ galvanized square and rectangular pipe

Size: dia 12mm-400mm

Material: Q195-Q235

4. screw seam two submerged-arc welding pipe

Size: dia 159mm-2200mm

Material: Q235B, Q345B