plug valves and ball valves
BALL VALVE and PLUG VALVES in the place of type is the similar, only this can be a sphere with the closure member, for rotating the sphere in the body center line to reach open and close a valve. A vey important valve with the pipeline used cutting, distribution and alter the direction of medium flow.
Many local business owners plus the valve, "East" pass, except environment factors, alot of factors, similar to equipment and backward DC Gear Motor technology, low level of specialization, market size together with factors also restrict the introduction of the valve industry bottlenecks.Oilfield Ball Valves is very important.
Domestic and foreign valve companies have a very good certain gap, so the valve within the domestic industry, the Mainland and in some cases thankfully big gap concerning the coastal mainland from the local low valve industry, small-scale, low amount specialization, market-oriented not high, which widened the space together with the coast, moreover produced the uneven with the introduction the domestic valve industry.
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