Shenzhen weiyuan precisiontechnology co.LTD. We have ten years professional manufacture experience.we in possession of professional design and mauufacture capability.in addition ,we have some precision processing equipments and testing instruments .such as ,CNC lathe CNC milling machine .CNC grinder, CNCmachining center,CNC screw thread grinder,besides, we also have a excellent technical team .more than ten years design and design experience and manufacture experience .CAD ,CAM system are used in every step during the processing.Ensure the reliability of the product. Low cost and high accurcy make our products very popular both aborad and home .especially,in Guangdong, fujian, Zhejiang provice. Varity ,custom-made ,standard type,no flange .with round flange .with square flange .with double sides cut round flange ,with single side cut round flange ,double nuts or single nut .etc.