6061-T4/T6, 6063-T5/T6 and 6063A-T5/T6 are widely used for extrusion of curtain wall aluminum profiles.Since establishment, Knilex has been committed to the production of high-quality aluminum profiles, and strives to provide customers high-quality and high cost performance product in reasonable price. In the past 12 years, we keep research to improve the production process. From product R&D to production, quality control and packaging, we are committed to providing customers with aluminum products with stable quality and reasonable price to meet the different needs of customers. Service we provide 1. Professional technical support in product design stage 2. High-precision mould making 3. Sampling for customer's confirmation 4. High quality aluminum profile extrusion 5. Rigorous and objective QC inspection with inspection reports 6. Meticulous packing to avoid damage to the product in transit 7. Safe and secure container loading services 8. Source for customers wit…