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Application field of high temperature ball valve 2018-01-15 The high temperature ball valve is a metal seal structure, the sealing form is metal to metal seal, metal seal ring can be changed to metal seal, stainless steel plate and graphite composite plate sea
Introduction of plunger valve 2018-01-15 The plunger valve is composed of the valve body, the valve cover, the valve stem, the plunger, the hole frame, the seal ring and the handwheel. When the handwheel is rotated, the valve is opened and c
With excellent quality, considerate service 2018-01-15 Zhejiang Zhenggong Industrial Co., Ltd. was established in 2004, is a high-quality enterprise integrating research, development, production, sales as one of the professional production of energy-savin
People with high ideals, quality without borders, good faith to win the world 2018-01-15 Zhejiang Zhenggong Industrial Co., Ltd. was established in 2004, is a high-quality enterprise integrating research, development, production, sales as one of the professional production of energy-savin