1. water conservancy gate opening and closing machine manufacturer frp biobox 1 xinhe county zhongshi water conservancy machinery factory is a comprehensive enterprise integrating scientific research, manufacturing, metal structure, casting, machining, heat treatment and assembly. the leading products include: gates, opening and closing machines, cast iron knocker, cast iron square gate, electrical opening and closing machines, dual-purpose flashlight opening and closing machines, etc., and various product specifications and varieties are complete. at the same time, it can meet the product design and manufacturing that meets the user's special technical requirements. 30 people

screw opening and closing machine-winding opening and closing machine manufacturer-cast iron gate price-