The lining of coking, coal, electrical system in the coal unloading tank, coal hoppers, storage warehouse and so on...

焦化、煤炭，电气系统中的卸煤槽，煤料斗，贮仓等内衬。

youdao

The lining of coking, coal, electrical system in the coal unloading tank, coal hoppers, storage warehouse and so on...

焦化、煤炭，电气系统中的卸煤槽，煤料斗，贮仓等内衬。

youdao