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Explosion proof electrical installation, maintenance and repair qualification certificateIt is one of the essential qualification certificates for companies engaged in the explosion-proof electrical construction industry. As a professional agency for explosion-proof electrical installation, maintenance and repair qualification certificates,Zhongnuo TestingAccumulatively obtained corresponding certificates for hundreds of client enterprises. stayZhongnuo TestinghandleExplosion proof electrical installation, maintenance and repair technical training certificateAdopting online training methods, the training and examination standards areGB/T3836 series standardsRegularly arrange 1-2 training and exam sessions per month, and assist in preparing the necessary documents throughout the process, which can save processing time and costs for our corporate clients. The certificate is authentic, authoritative, and trustworthy!