China Precision custom turning parts & CNC turned parts manufacturer

Parts4world is a highly reliable and flexible machining company for precision custom turning parts, screw machine parts, CNC turned parts and custom machined parts. We work with a variety of businesses and industries to manufacture all of their fittings and turning components, from low to high volume requests.


We're an ISO 9001:2008 certified partner for all of your critical machining services, including precision turning, screw machining, CNC turning and CNC machining capabilities.


P4W factory produce precision custom turning parts, screw machine parts, CNC turned parts from bars of different materials, sizes and shapes, from simple assemblies to complex, relax-tolerance to tight-tolerance custom turned components. We work with aluminum, brass, low-lead brass, carbon and alloy steel, copper, and stainless steel to produce parts up to 80mm in outer diameter. The various features of each part make them suitable for applications like screw, shafts, standoffs, nuts, bolts, pins, studs, washer, rods, connectors, adapters, fittings, plugs, inserts and more.