Sand Casting Process-based enterprises
A few days ago I read "Today Yuhuan", see the October 8, 2007 line reads: "In 1982, with Sand Casting Process-based enterprises run
by the village clerk hose, from the introduction of a foreign trade company in Qingdao ball processing of samples and a single small
business … … from the beginning the primary copper valves production. " In fact, the beginning of any construction experience, as he had
exposed in 1981 that Japanese businessmen Yuhuan first hand from the copper ball sample, to see there were only 3 million orders, plus a
few people you have a word, I have a phrase, racing to develop brass ball valve, the old
He chose to give up quietly. He did not want the old unintentional positive outcomes, the original partner of the production of copper
valves a few friends, a few years effort, have earned at least the first bucket of gold Dangdang. To the "1997 Asian financial crisis", download-type stem and stem head convex order to prevent the exhaust valve stem, stem seal damage, such as fires, convex order and the body can form a metal contact, to ensure that stem seal.
7, anti-static function: the ball valve, valve body is placed between the springs, can export the generation of static electricity switching process.
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Ball valves come in a large variety
The double block and bleed valve
