Our factory was established in 1998 that special at the stepper motor , linear step[ing motor , lead screw , screw , shaft and so on hardware produce .we ae able to supply all kinds of stepping motor and lead screw , our products have good quality and precision , have sold worldwid and have "CE""ROHS" certification .if you need that products pls do not hesitate to contact us , Your trust and satisfaction are the ultimate reward for our services and products . We hope that you would keep in touch with us and give us a chance to serve you.