Plan: In September 2024, a German customer requested a custom-made quick release pin that originally specified a type of imported stainless steel. However, this material had high procurement costs and long lead times. After evaluating the application environment and strength requirements, our technical team proactively recommended several high-strength domestic alternatives. We provided physical test data and samples of three substitute materials for comparison. The customer ultimately selected one option that met all performance needs, reduced costs by 12%, and shortened the lead time by two weeks. The customer highly appreciated this solution and later applied it to similar products, deepening our cooperation.