Zhejiang Shuangtai Valve Co., Ltd. Is located at Oubei of Wenzhou, the Village of Pump & Valve of China, with a land area 12000m2, and holds a modern mechanical process center, over 300 digital control and common machine tools and such special equipments as for metal materials¡äphysical and chemical tests, mechanical property and mechanics tests,sonigauge, browei hardness measurement, nondestructive test, plasma ove..