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Soft seal gate valve and hard seal gate valve manufacturing process: due to the complex working environment of many petroleum, chemical and mechanical industrie···
Open stem gate valve and dark stem gate valve difference1. The screw can not be seen in the dark rod valve, but the screw can be seen in the open rod. This is a···
Working principle of swing check valve:1. The opening and closing principle of swing check valve is the same as that of lifting check valve, which also depends ···
The rubber flap check valve is characterized by large load change, small opening and closing frequency, a closed or open state, the common cycle is very long, a···
Ball check valve is a kind of multi-ball, multi-channel, multi-cone type inverted fluid structure of the check valve, mainly by the front and back valve body, r···
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