6. breakdown, division, unit construction quality inspection records. Six acceptance should focus on checking the following items: 1. pipes, fittings flag is consistent with the purposes of the cold water pipe with pipe fittings shall not be used for hot water pipes; 2. piping and valves, hydrant connection is only with special transition fittings; 3. groove connection using special rubber seals; Luya several pipe threaded joints 4. whether excessive; ⑧ pipeline should be laid in considering the change in length due to expansion caused by the temperature difference between knitting resistant steel pipe steel pipe, Depending on the situation and take appropriate compensation calculation telescopic action. (6) pipeline hydrostatic test. Lined steel pipe pressure test with the same ordinary galvanized steel. (7) quality control. ① PF leadership group to establish quality steel pipe steel pipe series, set up QC team. ② laying on the roof and outdoor daylight pipes made of steel pipe steel pipe, the use of asbestos rubber insulation and protection through the water in front of a good film to avoid re-lined steel pipes in direct contact with moist objects, causing corrosion electrochemical reaction. ③ pipes and hydrants junction angle steel reinforcement measures. Steel pipe _ Golden Link Pipe Industry (certified) _ steel pipe provided by the Hebei Golden Link Pipe Industry Co., Ltd .. Hebei Golden Link Pipe Industry Co., Ltd. (www.hbjinlingpipes.com/) Hebei Hengshui, chemical products leader, over the years, the company is implementing the scientific management, innovation and development, the principle of honesty and trustworthiness, and satisfy customer needs. Industry leaders in Jinling staff warmly welcome all inquiries negotiations to create the Golden Link Pipe a better future.