HaiYan ShangJia Hardware Manufacturer, a company established in 2008, specializes in the production of non-standard bolts and screws. They have a strong background in this field and focus on research and development as well as production. Their main products include welding screws, flange bolts, adjustable bolts, and fastener assemblies for construction. These non-standard fasteners are widely used in various industries such as automobile, household appliances, furniture, and construction. The company primarily exports its products to Europe and Japan, indicating their international reach. They have invested in multiple sets of multi-station molding machines and other supporting equipment to enhance their production capabilities.