免费久久人人爽人人爽av,av精品一区二区三区

PLC企業(yè)資訊

關(guān)于電子地磅-電子汽車衡維護

發(fā)布者：lfds88 發(fā)布時間：2018-07-15 04:28:32

目前，國內(nèi)的食品包裝袋一般可分為單膜袋和復(fù)合薄膜包裝袋兩大類。其主要執(zhí)行標準有：GB/T4456-1996《包裝用聚乙烯吹塑薄膜》、GB12025-1989《高密度聚乙烯吹塑薄膜》、QB/T2461-1999《包裝用降解聚乙烯薄膜》、GB9687-1988《食品包裝用聚乙烯成型品衛(wèi)生標準》、GB9688-1988《食品包裝用聚丙烯成型品衛(wèi)生標準》等。

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