High pressure boiler pipes Main material: 20G, SA106c, ST45.8/3 Standard: GB5310-95, ASTMA106-99, DIN17175-79 Specification: 16-824mm*2-65mm Application: for boiler and pipeline of low, medium and high pressure boiler We can supply all kinds of seamless steel pipes,steel bars,steel coil,U-ahannel and Angle steel.Please contact me if you have any requirements in this line of the products. I will give you the offer in the first time.