国产偷v国产偷v亚洲张丽_五月亚洲丁香_a免费在线观看_欧美日本成人_丝袜中出制服人妻美腿_婷婷好紧好多水国产好硬_九九热精品在线播放_97超级在线人妻资讯_日韩精品视频观看_中文字幕无码笫一页

Tianjin Explosion proof Electrical Testing and Inspection Center

PCECEstablished in 1985, it was approved by the former Ministry of Chemical Industry and consists ofZhongnuo TestingNational Explosion proof Product Quality Supervision and Inspection Center (Tianjin), Petroleum and Chemical Industry Electrical Product Explosion proof Quality Supervision and Inspection Center, and Zhongchuang Xinhai (Tianjin) Certification Service Co., Ltd. Belonging toZhongnuo TestingCNOOC Tianjin Chemical Research and Design Institute Co., Ltd. is a mandatory product certification agency and laboratory designated by the State Administration for Market Regulation.

The National Explosion proof Product Quality Supervision and Inspection Center (Tianjin)/Petroleum and Chemical Industry Electrical Product Explosion proof Quality Supervision and Inspection Center is engaged in special environmental equipment inspection and testing, certification and certification, training and consulting, and other businessesExplosion proof testingInspection agency.