Steel pipes; steel balls; non-electric steel wire; steels; steel sheets; stainless steel pipes; tinplate; wrought iron for building; steel alloys; castings of zinc or its alloys; zinc ingots; zinc plates and sheets; zinc alloy ingots; castings of aluminum or its alloys; aluminum foil; aluminum wire; semi-finished articles of unrefined aluminum; aluminum ingots; aluminum alloy ingots; building panels of metal; frames of metal for building, namely, metal window frames; door panels of metal; flo...