Ningbo Huitong Machine Connection Parts Co., Ltd. covers the custom development, manufacturing and trading of the parts for traditional and electric automobiles, engineering machinery, agricultural machinery ect. especially striving to be tier two supplier, including new energy automobile and traditional automobile. It involves automotive thermal management system, cooling system, air conditioning system, brake system, hydraulic piping system, rail transit system and hydrogen-related automotive piping system, etc. For example, precision valve seat, valve body, valve pin, base seat, piston, worm, sensor connector, guide cap, multi-channel pipe fitting, pipe connector fitting, pin, shaft, bolt, special nut ect.