Maritime Directory

Pembroke, NH, United States

Contromatics Inc. develops and manufactures high-performance valves and actuators for the energy, chemical, and petrochemical industries, focusing on reliable ball valves and actuator packages.

Shanghai Hanwei Special Valve, established in 1992 and headquartered in Shanghai Pudong New Area, specializes in high-tech valves including ball valves, butterfly valves, gate valves, and control valves, serving industries such as oil and gas, marine engineering, petrochemical, and chemical sectors.