puyang chemical calcium carbide project completed and passed acceptance
latest news: on july 15th, puyang chemical organized the completion and acceptance of the 200,000-ton/year calcium carbide project (the first phase of 100,000-ton annual construction project). yanshan county construction engineering quality supervision station, yunnan construction engineering group fourth construction co., ltd., yunnan second installation engineering company, yunnan guokai construction supervision consulting co., ltd., china nonferrous…
