Mastery of Tianjin Steel Trade Co., Ltd. specializes in the supply of various types of spiral pipe, pipe, seamless tube, spiral pipe, reasonable price and stock. Strength test pressure vessels: pressure vessels, in addition to sealing test, but also the strength test. There are two common pressure test and pressure test. They can be tested in working under pressure vessels and piping welds compactness. Pressure test is more sensitive than the hydrostatic test and speed, while after the test product without waste water treatment, drainage problems for the product is particularly applicable. But the risk is greater than the test pressure test. When tested, it must comply with the appropriate safety measures to prevent accidents during the test. Mastery of Tianjin Steel Trade Co., Ltd. specializes in the supply of various types of spiral pipe, pipe, seamless tube, reasonable price and stock. Companies with strong technical strength, advanced production equipment, complete product specifications and good quality of full-service, fully recognized by the market and obtain certification bodies, and received a number of domestic and international certificates, trusted by customers and the industry. Products sold in Shandong Province and domestic provinces and autonomous regions. And always adhere to a scientific development concept to guide the overall situation, adhere to the people-oriented management philosophy, api spiral in strategic planning will be a firm domestic market and further explore the international market, Yunnan spiral, create Chinese famous brand steel industry. Mastery of Tianjin Steel Trade Co., Ltd. specializes in the supply of various types of spiral pipe, pipe, seamless tube, spiral pipe specifications, reasonable price, stock. How to increase the stability of large-scale steel spiral pipe, rails, shame steel, large diameter steel pipe, forgings, etc., may open dumps. In a warehouse not with acid, alkali, salt, cement, steel and other aggressive materials stacked together. Different varieties of steel should be stacked separately, to prevent confusion, avoid contact corrosion. Spiral plant, around VAI (online consultation), Yunnan spiral from the Tianjin Steel Trade Co., Ltd. Mastery. Mastery of Tianjin Steel Trade Co., Ltd. (www.tjtdgl.com) (www.tdglgt.com) Shandong Liaocheng, steel leaders, over the years, the company is implementing the scientific management, innovation and development, the principle of honesty and trustworthiness, and satisfy customer demand. Mastery Steel Union leaders in the staff warmly welcome all inquiries negotiations to create accessible VAI better future.