Specification：Fangyuan adheres to the concept of original innovation. They are able to provide complete technology services, product development, and production of expansion tanks that fit various engine cooling systems and braking system for OEM and the after-market. The products are processed by advanced plastic welding technology that uses hot board, ultrasonic, friction, and vibration with PP and nylon resin or blow molding with polyethylene. With a fluid lever alarm sensor inside and heat resistant, corrosion resistant EPDM rubber tube assembled outside, it conforms to performance requirement of product pressure and leakage .