Ningbo Lang Chi Machine Factory is a professional manufacturer of screws, nuts, worm and worm wheel, which is used for transmission, lift, push-and-pull, fastening. We can make one-start screw, multi-start thread screw, left and right head screw. The thread standards: International standard, German standard DIN103, American Standard ACME and etc. The screw material can be carbon steel, alloy steel, stainless steel, copper, aluminum, and etc.; And nuts material can be tin bronze, POM, carbon steel, cast iron, free-cutting steel and etc. Special specifications products can be customized according to the customer request, including screws, nuts, M0.5-M6 modulus of the worm and the worm wheel. We have a full array of suitable equipment and have capacity of transform devices, such as CNC lathe, milling machine, grinding machine, two-axis rolling and three-axis rolling, punching. Our products are popular in domestic and foreign market, and mainly exported to Europe and other international markets, which are well received by customers. Welcome come to visit our factory for business discussion, we will do our best to provide you with quality products and services.