1. The length range of steel is an effective measure to save material. Length is the length range or length by width is not less than a certain size, or length, long by wide delivery from number to number of sizes. Production units can be produced according to the requirements of this size available. 2. not length (usually length) where the dimensions (length or width), within the standard range, but without requiring a fixed size called not length. Length Length is usually not known length (through feet). By not length delivery metallic materials Liaocheng 316L screw bolt, as long as the prescribed length delivery can be. For example, no more than ordinary 25mm round Heze 316L screw bolt, which is usually defined as the length of 4-10m, the length of the bar in this range can be delivered. 3, screw product acceptance inspection, marking and packaging criteria: project eligibility checks specified quality levels and sampling programs at the factory acceptance 316L screw bolts, as well as the content method and packaging requirements of the product logo. Stainless steel nylon lock nuts, stainless steel lock nut, stainless steel welded nut 4, standard parts, fasteners, screws, screws standard labeling method: specify the content of the complete product labeling method and simplified methods of marking. 5, fastener standards in other areas: terminology such as standard fasteners, fastener product weight standards. Linyi 316L screw bolts, Jinan Road ground (certified), 316L screw bolt is provided by Jinan Daoqin Trading Company. Jinan Daoqin Trading Company (www.daoqinshangmao.com) (www.daoqinshangmao.com) Shandong Jinan, hardware accessories leader over the years, the company implement the scientific management, innovation and development, the principle of honesty and trustworthiness, and satisfy customer demand. Jinan Road ground in leadership with the staff warmly welcome all inquiries negotiations to create the Jinan Daoqin better future.