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ʱ䣺2019-12-04 21:16:39

      ʯӢɰDzȻʯӢΪԭϣ飬ˮϴɸѡȹӹɣˮҵʹ㷺ľˮϡ ʯӢɰʣѹĥеǿȸߣѧȶǿЧߡʹڳڵ㡢˫˳ءӽУָﵽCJ/T43-2009׼

       ӹоʯӢɰʯӢɰᴦͨʯӢɰ㲻ͬûʹ ù70-120Ŀ 40-70Ŀ 24-36Ŀ16-24Ŀ 0.6-1.2mm 1-2mm 2-4mm 4-6mm 6-8mm ȻʯӢ󾭷顢ɸѡˮϴȹռӹɡ۳ʶΡ״ɫлеǿȸߡǿܺõŵ㡣

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