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PERFO

Mining Metallurgy Chemical Metal Processing Environment Public Works Building Intelligent Equipment New Energy Digitalization and Intelligentization

Sulphuric Acid System for Zinc Smelting Slag Processing Project of Zhongjin Lingnan Danxia Smelter, China

EPC Project, 270kt/a sulphuric acid; “4+1” double-conversion double-absorption, acid production from zinc smelting offgas.

2019天天看夜夜看狠狠看噜片_无码专区狠狠躁天天躁_台湾中文娱乐综合she天天_夜夜爽狠狠天天婷婷五月