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1.Chenban manganese steel, chromium ball processing and sales.
锰钢衬板，铬球加工销售。收藏指正
2.Low chromium alloy series Gangqiu, various mills Chenban, wear-resisting acidproof metal, copper Liu, bronze pieces, copper products production and marketing.
低铬合金系列钢球、各类磨机衬板、耐磨耐酸铸件、铜料、铸铜件、铜产品制作及销售。收藏指正
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