SDZ is a TS16949 certificated company, domestic OEM supplier, specialized in manufacture and exportation of fuel supply systems products and cooling system products. It including 12V electric fuel pump and electric fuel pump module, 24V commercial vehicle fuel pump and fuel level sensor. Cooling system products cover oil cooler, coolant flanges, thermostat housing, coolant pipe .First-class equipments, R&D and QC teams consisting of senior engineers and technicians and well performed quality system ensure high quality delivery and customer satisfaction. SDZ products are popular in the world.