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Technical Improvement
Replace Butterfly Valve with Wedge Within Wedge Gate Valve in MTG Process
Technical Transformation of Liquid-air Valve in Hualu Hengsheng
Replace ball valve with rotating disc valve for gas-solid service
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Address： 100 metres in east from Cross of Boxing 1 Road and Taihe 3 Street, Daxing District, Beijing
Fax： 010-67093631
E-mail： valve@calt11.cn
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