... R & D, marketing and production of various aluminum profile, doors and windows, curtain wall and stainless steel products. 2. ... for construction, such as doors, windows, fence, screen, curtain wall, handrail, partition, wardrobe, greenhouse and sunroom, etc. 2 ... for solar energy, LED, machinery, advertisement, transport, auto part, exhibit shelf, telecom etc4. Machining service: precise cutting, ...