Spiral Submerged Arc Welded Steel Pipe

Material: Q235B, Q345, St37-2, St52, SS400, STK500, ASTM A53, S235JR, S335
Standard: GB/T 9711.1-1997, SY/T 5037-2000, API, ASTM 
Pipe I.D. is from Φ219 to Φ2620mm,
Thickness is from 6mm to 32mm
Length is  1---12 Meters/PCS,      
It can be used for projects of dredging, mine, oil, water, sand, mud, etc.