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SIS 21 25 02-1973 Hot rolled steel round bar《热轧钢圆杆》.pdf 2

SIS 21 25 02-1973 Hot rolled steel round bar《热轧钢圆杆》.pdfSIS 21 25 02-1973 Hot rolled steel round bar《热轧钢圆杆》.pdf

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SIS 21 25 02-1967 Hot roiled steel round barn《热轧圆钢》.pdf 1

SIS 21 25 02-1967 Hot roiled steel round barn《热轧圆钢》.pdfSIS 21 25 02-1967 Hot roiled steel round barn《热轧圆钢》.pdf

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SIS 21 23 40-1969 Cold drawn steel hexagon bam《冷拔六角钢条》.pdf 1

SIS 21 23 40-1969 Cold drawn steel hexagon bam《冷拔六角钢条》.pdfSIS 21 23 40-1969 Cold drawn steel hexagon bam《冷拔六角钢条》.pdf

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SIS 14 52 17-1973 Arsenical aluminium brass《砷铝黄铜 CuZn20AI2》.pdf 4

SIS 14 52 17-1973 Arsenical aluminium brass《砷铝黄铜 CuZn20AI2》.pdfSIS 14 52 17-1973 Arsenical aluminium brass《砷铝黄铜 CuZn20AI2》.pdf

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SIS 14 52 04-1970 Copper-lead-tin-zinc alloy 52 04《铜，铅，锡锌合金52 04 类型CuPb5Sn5Zn5》.pdf 2

SIS 14 52 04-1970 Copper-lead-tin-zinc alloy 52 04《铜，铅，锡锌合金52 04 类型CuPb5Sn5Zn5》.pdfSIS 14 52 04-1970 Copper-lead-tin-zinc alloy 52 04《铜，铅，锡锌合金52 04 类型CuPb5Sn5Zn5》.pdf

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SIS 14 51 73-1973 Leaded brass《加铅黄铜》.pdf 2

SIS 14 51 73-1973 Leaded brass《加铅黄铜》.pdfSIS 14 51 73-1973 Leaded brass《加铅黄铜》.pdf

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SIS 14 51 73-1963 Leaded brass 51 73《加铅黄铜51 73》.pdf 2

SIS 14 51 73-1963 Leaded brass 51 73《加铅黄铜51 73》.pdfSIS 14 51 73-1963 Leaded brass 51 73《加铅黄铜51 73》.pdf

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SIS 14 51 70-1973 Free machining brass《易切削黄铜》.pdf 4

SIS 14 51 70-1973 Free machining brass《易切削黄铜》.pdfSIS 14 51 70-1973 Free machining brass《易切削黄铜》.pdf

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SIS 12 31 61-1962 Tolerans jsl3 Aluminium bars for electrical purposes《电气铝棒公差》.pdf 1

SIS 12 31 61-1962 Tolerans jsl3 Aluminium bars for electrical purposes《电气铝棒公差》.pdfSIS 12 31 61-1962 Tolerans jsl3 Aluminium bars for electrical purposes《电气铝棒公差》.pdf

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SIS 12 31 11-1959 《圆形材料 挤压铝和铝合金》.pdf 1

SIS 12 31 11-1959 《圆形材料 挤压铝和铝合金》.pdfSIS 12 31 11-1959 《圆形材料 挤压铝和铝合金》.pdf

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