How about conch aluminum alloy profiles?

Conch aluminum alloy profile is very good

Conch Aluminum is a first-line brand, and now it has developed into an aluminum profile enterprise integrating R&D, design, production and sales. At present, it has successively passed ISO900 1:2208 quality management system certification and ISO 1400 1:2004 environmental management system certification.

Conch Aluminum has been adhering to the enterprise spirit of "wisdom, responsibility, tolerance and enterprising" and taking the business philosophy of "quality and brand synchronization, enterprise and society win-win", which has been unanimously recognized by customers. It has more than 300 specialty stores, covering more than 30 provinces, municipalities, autonomous regions and municipalities directly under the central government.