Liaocheng dry one hundred million Industry Co. (www.sd304.com) is located in Liaocheng City, Shandong Province, Wang Zhuang Industrial Park Development Zone, Contact: Deng Qinghua dry one hundred million Liaocheng Co. (Silver Sheng supplies) Company (135 --0635--7000) specializing in the production of various steel Φ 6 - Φ 110 precision steel tubes, I mainly fulfilling automakers 20cr with the development and sale of precision steel tubing and hydraulic oil pipes, the development has already become the automotive tubing and hydraulic oil pipe-based multi-species, multi-purpose professional steel pipe manufacturer Liaocheng 20cr precision steel pipe manufacturers, the product has a small, fine, thin features. In 2010 production reached 10,000 tons annually sell more than 20cr precision steel specifications, products widely used in Volkswagen, General Motors, Honda, Toyota, Nissan, Hyundai, Ford, Volvo, other high-end cars and heavy truck and construction machinery. Products are exported to the United States, Italy, Brazil and other European countries finish tube standards and uses standard Standard GB / T3639 GB / T8713 Precision Tube DIN2391-2 HK15-2000 Uses Uses for the manufacture of mechanical structures, hydraulic equipment, auto parts cold drawn tubes or cold rolled precision seamless tube (GB3639-2000) is a high dimensional accuracy for mechanical structure, hydraulic equipment and surface finish good cold drawn or cold rolled precision seamless steel tubes. Cold drawn precision cold drawn precision steel tubes is a new high-tech energy-saving products. , High-precision cold drawn precision steel tubes application for saving steel, precision steel 20cr improve processing efficiency, energy conservation refers to the so-called high-precision cold drawn tube inner diameter size accuracy (tolerance) strict, internal and external surface finish, roundness, The main technical indicators straightness good, uniform thickness refined the technology's high-precision cold drawn tubes has reached or exceeded the national standard GB8713--88 part of the requirements and international standards ISO4394 / I-1980 (E) of.