Trading in products in the field of home installations and environmental protection, marketing, planning, consulting and installation mainly in the field of home installations. May establish branch offices, participate in other domestic and foreign companies, acquire or merge with similar or related companies, acquire or sell real estate, and enter into all transactions and conclude contracts that are suitable to promote the purpose of the company or are directly or indirectly related thereto, including the acquisition, exploitation, management and sale of patents, licenses, etc.