... , ASTM A53, EN5. Usage: used for low pressure liquids conveyance, such as water, gas, and construction6. Out Diameter: 10.3-406 ... test: The forming of the pipe by water pressure test, pressure test tube capacityX-ray: tube weld test whether ... furniture, green houses, scaffolds, petroleum, coal gas, natural gas, heating power stations, high-pressure hydropower stations and more. The quality of our ...