Valve parts before assembly process must go through the following procedure: 1, according to the processing requirements of professional valves, some parts need to be polished valve surface can not have glitches processing; 2, all parts degreasing treatment; 3, skim complete After pickling and passivation Kaiheng valves, non-phosphorus detergent; 4, after pickling, rinse with pure water purification, can not have drug residues, carbon steel components eliminating this step; 5, non-woven components individually be dry, not wired wool retained the part surface, or be dry with a clean nitrogen; 6, non-woven or paper dipped analytical precision parts alcohol to wipe one by one professional valve plant, until no dirty color. Valve type valve should normally shows the type of drive, connection type, structural features, sealing surface material, body material and nominal pressure and other factors. Standardized valve type of valve design, use, sell more convenient. Valve type and material of today, more and more, the model designation valve is also increasingly complex. Although China unified standard valve model designation, but increasingly unable to meet the development needs of industrial valves. Who can not use new valve standard numbers, each manufacturer may need to develop their own models. Tanggu valve, the valve out of Hong Kong (certified), Guangzhou valve by valve, the Hong Kong Science and Technology Co., Ltd. of Dongguan. Valve Co., Ltd., Dongguan Ming Kong (www.gdmgfm.com) is Dongguan, butterfly leaders, over the years, the company implement the scientific management, innovation and development, the principle of honesty and trustworthiness, and satisfy customer needs. Ming Kong valve leadership with the staff warmly welcome all inquiries negotiations to create a better valve out of Hong Kong in the future.