We are Weifang Guanyu machinery Manufacture Co., Ltd. We founded on May 2004, located in Hantin industry zone of Weifang city. We are a professional manufacturer of ball valve, pneumatic angle seat valve, quick couplings and knife gate valve. Our products have exported to South Africa, South America and European countries. we are a member of China Casting.We have the leading silicasol precision casting production line and CNC machining center, we can produce many kinds of stainless steel castings. We can guarantee the lowest price and highest quality to service the customers.
