... Manufacture, Erection Debugging & Start-UpDahua Group Dalian Boer Chemical Engineering Co., Ltd.100kt/a sulfuric acid plant based ... , Manufacture, Erection Debugging & Start-UpShanghai Pengxin Group Co., Ltd.70kt/a sulfuric acid plant based on sulfur ... based on sulfurTurnkey ProjectManufacture, Installation, DebuggingShandong Doguide Group Co., Ltd.400kt/a sulfuric acid plant based on sulfurfuming ...