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![]() Qingdao longfengxuan industrial Co.,Ltd is dedicated to manufacturing,supplying and exporting industrial metal products, including valve ,flange, pipe fittings, iron casting, stainless steel precision parts and anchor chain etc .we have been supplying for USA,Japan ,Europe and Middle East market for several years.The products are all widely applies in the fields of petroleum, chemical industry, power station fertilizer, metallurgy , shipping and agricultural machinery . The leading products are as follows , Forged valve both in higher and medium pressure ,cast steel valve ,butterfly valve ,ball valve ,power station valve and auto-control valve , etc . Flange and pipe fittings are manufactured in accordance with ASTM ,ANSI,API,... [Details] |
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