Goldcommon is certificated State Second Class qualification of fixing plate doors, windows and curtain wall, and capable to manufacture 80m-high, 8000m2 and door and windows of 28-floor residence.

• 永同昌柯曼拥有国家金属门窗、幕墙二级安装资质。具备承接单体高度80米、面积8000平方米的幕墙和高达28层住宅门窗的能力。