Shenzhen weiyuan precisiontechnology co.LTD. We have ten years professional manufacture experience.we in poession 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 griinder CNCmachining center.besides, we also have a excellent technical team . Ensure the reliability of the product.low cost and high accurcy make our products very popular both aborad and home . 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 etc.