Linear guide, ball screw manufacturer / supplier in China, offering High Quality Sfu Series Ball Screw Shaft Diameter 12mm Lead 4mm Factory Direct Sales Factory Price for CNC Machinery, 3D Printers Parts T8 Lead Screw 500mm 1000mm 1500mm 2000mm Lead Screw Trapezoidal Screws Copper Nuts Leadscrew Part, Wholesale Discount! Custom Length Ser-Gd Linear Guides (100-4000mm) with Slider - OEM/ODM Available for Medical Equipment and so on.