2002 Shanghai International Valve Qhov Ncaj Ncees 2018 Osaka Machinery Exhibition, Nyiv 2018 German xaim xaim thiab raj xa khoom Lub ntsej muag 2016 Canton Ncaj Ncees Duab ntawm cov neeg siv khoom hauv German xyoo 2018 2002 Shanghai International Valve Qhov Ncaj Ncees 2018 Osaka Machinery Exhibition, Nyiv 2018 German xaim xaim thiab raj xa khoom Lub ntsej muag 2016 Canton Ncaj Ncees Duab ntawm cov neeg siv khoom hauv German xyoo 2018