... *20'DV) 5. Pipe manufacturer Key Words: Line pipe, gas pipe, oil pipe, water pipe and tube, plain end steel pipe, heating system pipe, floor heating pipe01) Material ... ) Application: Used for low pressure liquids conveyance, such as water, gas, and construction, and support, structural use 06) MOQ: 25MT(1 ... B/L. 09) Formula for calculating the H.D.G. pipe weight: WT/Piece=(O/D—Wall Thk)*Wall Thk*0 ...