Cobalt mine environmental protection

The industrial waste gas, waste water and waste residue generated during the cobalt processing process are seriously polluted by the environment, among which SO 2 flue gas, chlorine gas, acid mist, dust, waste.......

Forged steel gate valve characteristics and principles

Forged steel gate valve used to cut off or connect the media in the pipeline, use different materials, can be applied to water, steam, oil, nitric acid, acetic acid, oxidizing media, urea and other media. It has three kinds of body cover connection design form, the following first: Body cover w.......