Low Voltage Bus Duct busbar,busduct,duct,conduit Zhenjiang Siemens Busbar Trunking Systems Co.Ltd is a joint venture between Siemens and Daqo group in China. Here are our oversea achievements: Singapore Bedok industrial park, Singapore UPS building, Singapore press holding project, Au Fab L8 Projector in Germany, Thailand Sattahip project, USA Oracle Software Technology Park, Singapore Sun plaza. My information: zhaoxing1 at daqo dot com.