Industry News
Pump Myth - dbb valve---11/3/2009
Following the development of the domestic manufacturing industry's largest air valve size, semi-ball valve, plug valves, the Zhengzhou City Butterfly Door Co., Ltd. Cheng trial a few days ago the success of the nation's largest full-casting-type dbb valve DN3600 caliber, and adopted the Hefei General Machinery Research Institute type test, to fill in the path of domestic design and manufacture of the blank.
