鐵及非鐵類材料(Metal Sheets, Barsetc.)鋼棒,角鐵,鐵絲,銅絲,鐵板,鋅板,鋼板,鋼絲等。 23.螺絲、螺絲帽類(Screws and Nuts)螺栓及螺帽,墊圈,掛鉤,楔形栓,鉚釘, ...
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