-OD: 1/2-24³( 21.3mm-610mm) -W.T: SCH10, SCH30, SCH40, STD, XS, SCH80, SCH160, XXS etc. -the galvanized steel pipeline zinc finish: Pre-galvanized: Z80-120g/ m2; Hot dip galvanized: Z230-500g/ m2. -Steel grade:A106, A53, A179, A192, Q195/Q215/Q235/Q345, ST37/44/52, S355, S235, S275 and so on Pipe Section form: Round/Square/Rectangular/ oval Ends: thread( screw) with coupling; plain; beveled Application: 1. For reduced pressure liquid shipment such as water, gas and oil 2. For building and construction, e.g building greenhouse We can also customize your order with any coating and threading you need. If you have any interest, please don't hesitate to contact us. Feel free to contact us if any further questions,we will serve you as soon as possible.