Stiefler GmbH
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Düker, a medium-sized company, is one of the leading manufacturers of valves and pressure pipe fittings for drinking water and gas supply, as well as pipes and fittings for building drainage.
Shanghai Kran Sealing Parts Co., Ltd. is a backbone enterprise in the domestic production of mechanical seals. The company has a building area of 12000 square meters and possesses first-class product design technology, advanced production growth rate