- Beijing Yuefeng Guangde Energy Technology Group Co., Ltd.
- Metal welding and assembly parts, Steel sheet metal parts, Aluminum sheet metal parts, Cable tray, Guardrails, Metal toolbox and cabinet, Customized metal fabrication part
Beijing
- Xiyi Electric Group Co., Ltd
- High Voltage Circuit Breaker, High Voltage Circuit Breaker Accessories
Zhejiang
- Qingdao Songfei Precision Machinery Co., Ltd.
- Mechanical Parts Customization
Shandong