[Baike supply @ plastic cable protection tube, Shandong @ @ fire special anti-corrosion pipe 13,506,351,437 [Baike supply @ Shandong @ coated cable protection casing @ Fire special anti-corrosion pipe 13506351437 
 Shandong David poly pipe materials Co., Ltd. is the professional management of seamless steel tubes, stainless steel pipe material circulation enterprises, and consists of seamless steel pipe plant. In the steel industry, have a good reputation. Our seamless steel tubes, stainless steel pipe, stainless steel, 304 stainless steel pipe, 316 stainless steel, 304 stainless steel plate, 316 stainless steel plate inventory is available from stock, and annual operating Chengdu, Baotou Steel, steel smelting, Lu Po, Anshan Iron and Steel , Anyang, Tianjin and other Chinese well-known large-scale steel mills, high-quality seamless steel pipe, stainless steel pipe, stainless steel plate, stainless steel seamless pipe. Complete specifications, quality and quantity. Consistent with the service first, quality first, reasonable price, customer first, good service, sharing client, the principle of small profits, honest and trustworthy for the purpose. A solid delivery system after years of operation has been established with the major steel mills, with the use of units established a good management system, all the staff warmly welcome new and old friends, patrons, guidance, calls business negotiations , let us join hands together to create brilliant! 
 Material: 20 #, 20G, 45 #, 27SiMn, of 12Cr1MoV, 15CrMo, 10CrMo910, Cr5Mo, Cr9Mo, A335P91, 12Cr2MoWVTiB, 15Mo3 and so on. 
 Stainless steel: 304, 321, 316, 309S, 310S, 0Cr13, 1Cr13, 3Cr13 and so on. 
 Implementation of standards: GB/T14975-2002, GB/T14976-2002, GB/T13296-91, GB/T12770-91, GB/T12771-91, GB/T423T-92, GB5310-1995, GB6479-2000, GB9948-1988 
 13506351437 0635-8884437-8884537