1、合格证英文：certificate of inspection/quality 。
【合格证英文】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.
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