维修检测设备的合格证明及相关计量器具的检定合格证书或者校准证书；
The certificates of conformity of maintenance and repair testing equipment, and the certificates of inspection or calibration of relevant measuring instruments;
防爆产品均通过国家指定防爆检测中心认证合格，并获得防爆合格证书。
The product of the enterprise has passed by nation check center and gained the anti-explosive certificate. The quality of the product is insured by PICC.
应用推荐