Profile: Ningbo Saivs Machinery Co., Ltd. is a manufacturer and exporter of various castings such as investment, sand, and die-castings. Our hydraulic parts are made of carbon steel, stainless steel, aluminum and brass. They are used for hydraulic systems. Sand casting includes green, aluminum, resin, iron, steel. copper, CNC and brass sand castings. We also offer steel lost wax, pressure die, investment lost wax, copper die and stainless steel forgings. We can produce all kinds of marine parts such as chain stopper, hatch cover, marine ladder, bollard and rollers.