Frequently Asked Questions (FAQ)

We enforce strict full-process quality control across our 20,000㎡ standardized modern production facility. Our engineering and quality assurance teams test every step of the workflow:

• Material Verification: Inspection of high-grade 6063-T5/T6 primary aluminum extrusion profiles and EPDM weather-seal gaskets.
• Intelligent Machining: Precision CNC cutting, corner crimping, and notch milling to ensure exact tolerance alignment.
• Performance Testing: Rigorous laboratory testing for airtightness, water penetration resistance, design wind pressure durability, thermal insulation (U-factor), and acoustic soundproofing.
• Pre-Shipment Inspection: Dimensional checks, smooth hardware operational tests, finish quality audits, and protective packaging sign-off.

Changsha Wincraft Aluminum Window Tech Co., Ltd. brings over 20 years of fenestration industry experience. Operating from a 20,000㎡ production base with advanced automated assembly lines, our products have been exported to more than 80 countries and regions across Europe, North America, Oceania, Southeast Asia, and the Middle East.

Yes. OEM and ODM customization represent a core part of our business model. We partner with global brand owners, distributors, building material wholesalers, and commercial contractors to deliver tailored solutions:

• Private Labeling & Packaging: Customized logo engraving, branded protective films, and export cartons.
• Profile & Finish Options: Anodizing, powder coating (RAL color spectrum), PVDF coating, and wood-grain thermal transfer finishes.
• Glazing Customization: Double/triple toughened glass, Low-E solar-control coatings, laminated safety glass, acoustic interlayers, and argon gas insulation.
• Hardware Matching: Premium European multi-point locking systems (HOPO, Siegenia, COTO, Roto) or customized hardware specifications.

We provide comprehensive B2B support programs designed for sustainable, long-term distributor growth. This includes exclusive regional agency policies, complimentary sample displays and technical catalogs, free sales and installation staff training, stable batch delivery schedules, and priority technical assistance.

Our engineering team communicates directly with your architectural staff. Upon receiving project elevation drawings, schedules, or dimension lists, we provide initial system proposals, structural calculations, and 3D architectural renderings within 24 hours. Full CAD shop drawings are issued for formal approval prior to cutting profiles.

Our standard manufacturing lead time is approximately 4 weeks from the date of final drawing sign-off and specification confirmation. For multi-phase commercial or large-scale residential projects, production is scheduled in batches according to your site erection and container dispatch schedule.

Yes. Our engineering team reviews local building regulations, structural wind loads, energy efficiency standards (U-values and SHGC), and water penetration safety codes before production begins. We tailor profile wall thicknesses, thermal break polyamide strips (PA66GF25), glass build-ups, and anchoring systems to fulfill certified project criteria.

We offer turnkey export logistics support for hassle-free international transport. Every shipment includes heavy-duty fully enclosed wooden crate packaging, steel-corner protection, and moisture barrier wrapping. Our export department handles customs documentation, container load optimization, real-time freight tracking, and door-to-door (DDP/DAP) or port-to-port shipping options.

Our product portfolio covers complete architectural envelope and outdoor living systems:

• Aluminum Doors: Ultra-narrow frame sliding doors, heavy-duty lift-and-slide patio doors, bi-fold doors, swing doors, pivot entrance doors, and pocket doors.
• Aluminum Windows: High-performance thermal-break casement windows, tilt-and-turn windows, sliding windows, awning/top-hung windows, louvers, and roof skylights.
• Outdoor Living: All-season insulated glass sunrooms, pergolas, and architectural aluminum pavilions.