Xiamen Xin Jin Yao Trade Co., Ltd. is located in Xiamen, Fujian, China company. Adhering to the "innovative ideas, the pursuit of excellence, rapid improvement, sustainable management" business philosophy; and "quality is the first work", "Customer satisfaction is our honor," as our quality policy will never change; to care for the environment , the society and caring employees and other social responsibility; the "integrity, responsibility, innovation, teamwork," as Feng Ming constant pursuit and goals, Yuanyuguangda friends together for a better tomorrow! Fire protection bridge fire zones, you must use steel or non-flammable, fire-retardant materials. I produced a series of cable tray are BJⅢ fire bridge. Ground 1, the bridge system should have a reliable electrical connection and ground (only metal tray). 2, while allowing the use of the bridge when the grounding line loop system configuration meets the following requirements. The connection resistance between the ends of the bridge should not exceed 0.00033 ohms Xiamen JDG pipe fittings brand, grounding hole should remove the insulation coating. In 1KV and below the neutral point directly grounded system, the neutral line is grounded by grounding electrical equipment connected to the system. Fitted at moving off the power when loading Xuan, prefect direction of the metal bridge cross-sectional area of ??not less than a predetermined value. Xiamen Xin Jin Yao Trade Co., Ltd. is located in Xiamen, Fujian, China company. Adhering to the "innovative ideas, the pursuit of excellence, rapid improvement, sustainable management" business philosophy; and "quality is the first work" Xiamen JDG tube wholesale price, "Customer satisfaction is our honor," as our eternal quality policies; to care for the environment, the society and care for employees and other social responsibility; the "integrity, responsibility, innovation, teamwork," as Feng Ming constant pursuit and goals, friends willing to join hands in creating a better tomorrow! Hydrostatic test pressure test shall be carried out in clarinet, eddy current testing can also be used instead of the hydrostatic test. Test pressure or eddy current testing comparative sample size should be consistent with the provisions of GB 3092. Mechanical properties of steel is to ensure that what the steel end-use properties (mechanical properties) is an important indicator of Xiamen JDG tube is that it depends on the chemical composition and heat treatment systems steel. In the steel standards JDG tube, depending on the usage requirements of the tensile properties (tensile strength, yield strength or yield point elongation) and hardness, toughness index, as well as user requirements of high and low temperature properties. Xiamen JDG pipe what is the use, Xiamen cable tray wholesale, JDG tube provided by the Xiamen Trade Co., Ltd. Xin Jin Yao. Xiamen Xin Yao Trade Co., Ltd. (www.556.com) is Xiamen, metal building materials leader, over the years, the company is implementing the scientific management, innovation and development, the principle of honesty and trustworthiness, and satisfy customer needs. Yao Xin trade in leadership with the staff warmly welcome all inquiries negotiations to create Xin Yao trade better future.