1、合格证英文：certificate of inspection/quality。
2、且均取得了国家指家的检验机构颁发的防爆合格证。And achieved a national home inspection organizations that explosion-proof certificate issued.
3、油漆材料必须有产品合格证及商检测试报告，并在有效期内使用。Paint material must have a product certificate and inspection test report, and used within the validity period.
