If you want to buy good product,PLS contact me. 1.Product name:boiler steel pipe2.Specification:1/2"-16"*2-25mm3.Length:4-12m4.Material: 10# 20# Q195-Q2355.Standard:ANSI,ASME GB, SH,HG, MSS,JIS,DIN, API 6.Application:petroleum, smelting, foodstuff, power,papermaking,chemical, medical equipment, aviation, boiler heat, exchanger, gas metallurgy, shipbuilding, construction, etc.7.Packing:wooden ...