国产日产精品久久久久快鸭-中文字幕高清一区不卡-中文字幕在线都是精品-深夜福利亚洲一区二区

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Short Description:

Tangshan Tianming Steel Co., Ltd.-TANGSHAN TIANMING STEEL CO.,LTD. affiliated to Tangshan Tianming Logistics Co., Ltd., was founded in 2003 and located in China i


  • Product model:

    GB STANDARD I BEAM

    STANDARD : GB/T706-1988

    STEEL GRADE : GB9787-88 Q235B


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