SunMac is a supplier of metal parts with high quality requirements. Our products are various series of marine valves and marine accessories, pneumatic valves components and impellers, etc. Our main products include marine water fire prevention system, and check valves, stop-check valves, bellows check valves, sea valves, self-closing releasing valves, throttle valves, ball valves, sounding self-closing valves, butterfly valves, quick closing valves, other marine accessories, pneumatic valves bonnet and spring plate, as well as turbocharger impellers, impellers for hydrostatic energy of working fluid.We can complete the entire precision parts production process from surveying and mapping, mold design, to casting and forging, machining, heat treatment, surface treatment, assembly and testing.Our team is familiar with the quality requirements and process standards of precision parts of leading domestic and foreign industrial companies, and constantly optimizes product quality and technological innovation, giving it a comparative advantage over many of its peers.