How to control raw materials for good stamping parts processing?

I believe that many stamping parts processing and purchasing personnel will be troubled, how to control the purchased raw materials? Today, let the author take you to analyze: 1. Stamping parts processing needs a stable and large-scale raw material manufacturer, instead of frequent replacement, purchase some here today and tomorrow. Because each stamping parts processing plant has its own product design habits, there will be some small differences. 2. For stamping parts processing, each incoming material needs to have a qualified material report, organize and file, and compare. The time of each master batch will be slightly different, but it will not affect the use. 3. The material of stamping parts cannot be changed at will without notice, and keep confidential. Hardware, 15 years of professionalism, more than 20,000 sets of molds in more than 20 industries, more than 100 sets of mold processing monthly, and daily production capacity of 3 million punches. Hotline: