The production process of lean pipe connectors varies depending on the product type (such as first generation steel plastic composite, second-generation stainless steel/chrome plated, third-generation aluminum alloy), but the core steps include material preparation, forming processing, surface treatment, and assembly testing. The following is an overview of the process based on common industrial practices, among which the first generation of steel plastic composite connectors have a more representative process due to their low cost and wide application.