Flat-rolled products of iron or non-alloy steel, of a width of 600mm or more, hot - rolled, not clad, plated or coated.
宽度在600毫米及以上的铁或非合金钢平板轧材,经热轧,但未经包覆、镀层或涂层。
2
This papers not only explores which factors make the consistency determination of the NaH_2PO_2 non-accurate in the chemical nickle-plated aqua , but also advance some feasible resolutions.