seamless precision steel tube seamless precision steel tubeFeatures: 1) Standard: ASTM/ASME A312, ... case or according to customers' request. 9) Application: The products are widely used in fertilizer, petroleum, central-station, boiler, ... chemical industry, environment protection, traffic, metallurgy and mine, printing and dyeing, food industry, medical equipement, and so on. 10) Test: Eddy current ...