Selection of steel doors and Windows must be to dealers for product quality inspection certificate.
选择好塑钢门窗后一定要向经销商索要产品质量检验合格证明。
Product Supporting document means instruction, drawing, circuit diagram, user's manual, marketing materials, quality certificate and any other similar document information for any products.
产品支持文件：是指任何产品说明书、图纸、电路图、用户手册、市场推广、合格证及其他类似的文件资料。
We have been gained good quality products certificate of national level prize and Shanghai excellent pioneer product prize for many times.
产品荣获国家级和上海市优秀新产品奖多项。
We have been gained good quality products certificate of national level prize and Shanghai excellent pioneer product prize for many times.
产品荣获国家级和上海市优秀新产品奖多项。
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