Manufacturer of enclosed fire-resistant bus duct

1, foreign brand: Guangzhou Schneider (wholly owned by France) quality first-line brand. 2, self-produced Wuxi LS (formerly LG) (wholly owned by South Korea) quality first-line brand. Produce by yourself. 3. Tianjin Guhe (Japanese-funded) quality first-line brand. The actual quality is higher than that produced by Schneider himself. 4. Zhenjiang Siemens (joint venture) produces according to domestic low standards. Self-produced (equivalent to the quality of domestic products). Eaton Mueller (called fake Mueller) has no physical factory, and it is OEM. General Motors (GE) does not have a physical factory, but does OEM work.