Hunan Green House Aluminium Co., Ltd.

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Hunan Greensee Doors & Windows Curtain Wall Co., Ltd.

🇨🇳 China

2003

201-300 people

Manufacturer/Trading Company/Wholesaler

Established brand

OEM manufacturer

ODM manufacturer

Own brand

Key market

Asia

Description

Hunan Greensee Doors & Windows Curtain Wall Co., Ltd. is a premier manufacturer and trading company headquartered in Changsha, China, with a history in high-end aluminum systems dating back to 2001. Operating from a 33,000-square-meter digital intelligent factory, the company utilizes 5G, AI, and big data to power its MES intelligent production lines and unmanned warehouses. With an annual production capacity exceeding 1 million square meters, Greensee specializes in a comprehensive range of products including aluminum windows, sliding and casement doors, curtain walls, glass balustrades, sunrooms, and awnings. Their technical expertise covers specialized solutions such as thermal break windows, tilt-and-turn systems, passive windows, and ultra-slim sliding doors designed for high-performance wind resistance and thermal insulation. As a certified manufacturer holding CE and AW-PG60 standards, the company provides professional OEM and ODM services, supported by an in-house R&D and design team. Greensee has established itself as a strategic partner for leading real estate enterprises and maintains an international presence, offering products that integrate premium hardware from global partners like Sobinco and Technoform. Their capabilities span the entire project lifecycle, from design and manufacturing to construction and installation for both residential and large-scale engineering applications.

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22years Factory Supply Glass Balustrade Deck Railing, Glass Guardrail Porch Railings$49

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Birchg Industry Co., Ltd.

🇨🇳 China

2007

11-50 people

Manufacturer/Trading Company

OEM manufacturer

Key market

🇺🇸 United States

Description

Birchg Industry Co., Ltd. is a manufacturer and trading company based in Changsha, China, specializing in aluminium windows and doors, roller shutters, and Persian blinds. Established in 2007, the company operates as a contract manufacturer with a factory and employs 11 to 50 people. Birchg Industry offers a wide range of aluminium windows and doors, including bi-folding, sliding, casement, scrolling, and awning types, as well as manual and electronic aluminium roller shutters and Persian blinds. They also provide aluminium profiles for construction, industry, and transportation, available with various surface treatments such as mill finished, PVDF coating, powder coating, anodizing coating, and electrophoretic coating in multiple colors. The company emphasizes rigorous quality control and competitive pricing, exporting its products to international markets, including the United States.