Lead Screw, Planetary Roller Screw, Linear Guide Module manufacturer / supplier in China, offering Diameter 4mm Lead 4mm Tr4X4 Durable Precision Lead Screw, Low Noise High Precision Stainless Steel Tr12X2 Tr16X6 Tr20X4 Lead Screw, Diameter 8mm Lead 0.5mm~24mm High Precision Lead Screw and so on.