Qingyunbaozhuang Plastic Co, Ltd

1) Main material: Top-grade aluminum profile; or thermal insulated aluminum profile. 2) Surface treatment: An

1) The sash opens and closes flexibly and reliably. 2) Heat insulated shaped section, excellent energy saving

1)Elegant design and appearance. 2)Can be open with a big space, and save indoor space. 3)Smooth operation a

1)Good lighting effects and ventilation. 2)Superior surface treatment. 3)Drainage system design to prevent t