Welcome to Jinhua Hefa Science and Technology Co., Ltd., your trusted automotive parts manufacturer specializing in high-quality vapor canisters, air spring stiffness valves, pressure holding valves, dust filters, engine oil strainers, and air intake pipe assemblies. As a B2B supplier catering to both OEM and aftermarket demands, we pride ourselves on our engineering expertise, multi-factory capabilities, and in-house R&D facilities. Our commitment to quality is backed by rigorous QC laboratorie