Out Diameter: 1/2-24�( 21.3mm-610mm) Wall Thickness: SCH10, SCH30, SCH40, STD, XS, SCH80, SCH160, XXS etc. Standards: BS1387, ASTMA53/A106/500,API 5L,GOST8731/8732, G3457,EN10255/10219, GB/T13912, EN39, EN ISO 1461, DIN2391, IS2062, AS/NZ 4680 Steel Grades: A106, A53, A179, A192, Q195/Q215/Q235/Q345, ST37/44/52, S355, S235, S275 and so on Zinc Coating: Pre-galvanized type: 60-150g/m2 Hot-dipped galvanized type: 200-500g/m2 Cold-dipped galvanized type: 10-50g/ m2 Pipe Section form: Round/Square/Rectangular/ oval Ends: thread( screw) with coupling; plain; beveled Applications: 1. For reduced pressure liquid shipment such as water, gas and oil 2. For building and construction, e.g building greenhouse If you consider the Galvanized steel pipe of our business piping project, please call and quote. Hebei Borun Steel Trade Co., Ltd is a famous steel pipe supplier in China. We can provide the items you need. The timely delivery orders are all over the world. Feel free to contact us if any further questions,we will serve you as soon as possible.