SEVEN GROUP- the expert of aluminum building materials manufacturer, has 3 subsidiary: Dong E Blue Sky and Seven Color Building Materials Co., Ltd, Sichuan SEVEN new Building Materials Co.,Ltd, Dong E Blue Sky and Seven Metal Materials Co.,Ltd, annual sales up to USD1.8 billion. We have obtained ISO9001 quality management system certification, ISO14001 environmental management system certification, and CE certification. In 2007, SEVEN series products were awarded the ”°CHINA TOP BRAND”± ”°China famous trade ma...
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