Product testing by the competent authority of the State institutions, and have achieved certification proof, explosion-proof equipment and industrial production license.
产品经国家权威机构检测合格，并取得了防爆合格证，及工业防爆设备生产许可证。
Product testing by the competent authority of the State institutions, and have achieved certification proof, explosion-proof equipment and industrial production license.
产品经国家权威机构检测合格，并取得了防爆合格证，及工业防爆设备生产许可证。
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