Currently, the domestic valve industry research and development capabilities are still weak, the basic method to stay on experience in design, product development can only be digested and absorbed some foreign reference design information and samples of new products in the true sense of self-development work rarely. The reason is the lack of design guidance and involvement of high-paying technology means new theory, but also a lack of performance parameters, temperature parameters of dynamic simulation tools and test equipment V-ball, put in basic research is also small. V-ball surface roughness of the machined surface means having a smaller pitch and the tiny valley irregularities. From its two peaks or two troughs between the (pitch) is small (1mm or less), it is difficult to distinguish with the naked eye, and thus the surface roughness are micro geometry error. The smaller the surface roughness, the more smooth surface. Surface roughness size, has a great influence on the performance of mechanical parts. Has a great influence on the surface roughness of the parts usage. Generally V-ball supplier, surface roughness value is small, the quality will improve with the V-ball offer, reduce wear and extend the life of parts, but the parts will increase processing costs. So V-ball manufacturers, to the right, a reasonable selection of surface roughness values. In the design of the part, the surface roughness values ??of the choice is based on the role of the parts in the machine decision. Weifang V-ball | V-type valve | valve provided by Everbright Everbright Valve Co., Ltd., Shandong. Valve Co., Ltd. Shandong China Everbright (www.sdgdfm.com) strong, credible, Shandong Weifang ball industry has accumulated a large number of loyal customers. The company better work attitude and constantly improving innovative ideas will lead Everbright valve into the brilliant and you work for a better future!