On June 22, Daqing Petrochemical Construction Co., Ltd. carried out a major overhaul of the three-distillation plant in the new petrochemical production area of ​​Dalian Petrochemical Co., Ltd., achieving a satisfactory completion rate of 100%. The drive was successful once. The overhaul lasted for 22 days and completed the inspection and repair of 12 towers and 110 heat exchangers, as well as the installation and replacement of 1 tower, 20 heat exchangers, 6 air coolers, 5 engine pumps, and 4 containers. Supporting the installation of process pipelines, anti-corrosion and other tasks, and achieved zero violations and zero pollution. PVC Fast Roll Up Door, AGV high speed door, AGV high speed rolling door, roll fast doors SHENZHEN HONGFA AUTOMATIC DOOR CO., LTD , https://www.hongfahsrs.com