175 series & 120 series for sale - Sleek (Shanghai) Intelligent System Co., Ltd.

SLEEK is a Chinese supplier of ultra-slim frame window and door design solutions, specializing in the production and R&D of slim frame windows and doors. SLEEK's intelligent production factory is located in Qingpu District, Shanghai, covering an area of 11,000 square meters. It features an automated logistics and warehousing system, a fully automated European end-milling production line, high-efficiency processing, and rigorously selected high-end aluminum materials and premium hardware from Belgium, Italy, and Germany. It supports custom-made shapes and delivers high-quality...

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SLEEK 86 series minimalist narrow frame ventilation window

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Sleek (Shanghai) Intelligent System Co., Ltd.

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Sleek (Shanghai) Intelligent System Co., Ltd.

175 series

120 series

146 series