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Cooperation introduce

Guangzhou metro group co., LTD. (hereinafter referred to as the "guangzhou metro") is a wholly owned large state-owned enterprises, the guangzhou municipal government is responsible for the construction of guangzhou rapid rail transit system, operation management and affiliated resources development and management.

Since its establishment, in order to serve the society and the well-being of the people, for the purpose of full implementation of "clean, tidy, safe and orderly" urban management requirements, go all out "the good construction, operation, management good" subway, creates a good social benefit, economic benefit and environmental benefits. In recent years, the company has won the title of "national civilized unit", etc.

Now sig's brand, the main business of indoor air purifier, automotive air conditioning purification network series products, the introduction of the cation technology, has a long ?