Top quality: hydralic test, x-ray, offer-line ut, eddy current inspection, etc, 3rd party inspection to test. Fast delivery: many sets of advanced production equipment to produce, as well as perfect logistics system. Timely quotation: professional sales quote for you after receive your inquiry. Certificate share: mtc, iso, inspection report and other quality certification. Used for low pressure liquid delivery, such as water, gas, and oil. Outer diameter: 219mm-1820mm Wall thickness: 5.0mm-50mm Length: 6mtr-18mtr Standard: api5l, astm a106/a53, din2458, en10217 Material: gr.B, x42, x46, x52, x60, x65, x70, s355, st37 Surface: lightly oiled, hot dip galvanized, electro galvanized, black, bare, varnish coating/anti rust oil, protective coatings Packing: bare of bundled or pvc packing ect. Test: chemical component analysis, mechanical properties and other inspection Third inspection: bv, sgs, lloyds.