As one of the top quick connector manufacturer, Yongheng focus on solution for automotive fluid transmission connection since 1994. Our management system meets requirement of IATF 16949. Our products include: plastic quick connector, SAE quick connector, VDA connector, fuel line connector, water cooling connector, check valve?and dust proofing products. We also provide sample processing and OEM service. Visit us at: https://www.automotivequickconnect.com