Hangzhou Kaimen Mechanical & Electrical Equipment Co., Ltd was established in December, 2001, restructured from Hangzhou
Kaifa Mechanical & Electrical Equipment & Valve Company established in 1994. It mainly engages power station equipment set,
mechanical & electrical equipment, valve, water pump, insulation material, and concurrently engages hydropower and heating
& ventilating equipment installation. It is a sales agent of the Hydraulic-control Heavy-hammer, Motor and Manual Butterfuly
Valves produced by China Valves Technology(changsha)Co.,Ltd (formerly known as Changsha Valve Works), and general sales company
of the Hydraulic-control Heavy-hammer, Motor and Manual Ball Valves co-researched and developed with TianJin International
Machinery Co.Ltd （formerly known as TianJin Valve Worksas well as the Gate Valve and Globe Valve produce by Tianjin Valve Works.