Precision steel delivery status I. Processing (hard) after the last cold without heat treatment, which can only be carried out small tube deformation. Second, the cold (soft) Finally, a small amount of cold deformation after heat treatment of steel plus hours allow limited cold deformation. (For example: bending, flaring) three, after the elimination of stress annealing after cold working at Acl points below last cold annealed to eliminate cold stress four, after annealing the last cold, under the protection of gas pipe fully annealed After normalizing the last five cold, steel under protective gas normalizing. 4 automotive supply pipe of the status quo, according to research data, the country engaged in automotive pipe production enterprises more, mainly around the SAIC, FAW Group and Dongfeng Motor Group supporting parts supply special steel production needs. For general non-mainstream models, the number of steel varieties and specifications to meet the basic requirements. Although smaller, the quality is still not stable enough small low precision steel who, technical content, but because of the relatively low price, to adapt to the market still has some viability. But in high-end mainstream models with matching main components dependent on imports of small precision steel specifications, some parts with steel purchases from domestic sentinel enterprises. A certain production scale and supply pipe production capacity of automobile companies are: Currently virtue tube industry factories, has formed 10 # to 45 #, more than 10 brands of small precision steel pickling 16Mn, 20Cr, 15CrMo, 35CrMo, SAE8617H etc. a total of more than 70 specifications for more than 10 varieties series vehicle handling, shock absorbers, drive shafts, steering, front car after car, muffler, car accessories, annual sales of about six thousand tons of steel capacity . Virtues of domestic pipe industry to adapt to the needs of small precision steel tubes, play, drawing, cold-rolled production supporting the advantages of automotive tubes new product development, integrated quality products have a more substantial upgrade, delivery models have a more level good increase, high-end cars, the development of new van localization tube made great progress. Small precision steel manufacturing, small precision steel tubes, Pipe Co., Ltd. is provided by virtue of virtue Liaocheng Pipe. Liaocheng virtue Pipe Co., Ltd. (www.meidegc.com) (www.meidegc.com) (www.mdwfg.com) (www.mdggc.com) strong, credible, Liaocheng in Shandong steel industry has accumulated a large number of loyal customers. The company better work attitude and constantly improving innovative ideas will lead virtue of Industry and you work into the brilliant, for a better future!