SB20 applies only to CRT, LCD and plasma screens larger than four inches measured diagonally. SB50 extended coverage to products refurbished by the manufacturer for retail sale.
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释义
SB20法令只针对带有4英寸以上的阴极射线管、晶、离子的设备,范围为符合上述要求的零售设备。SB50扩大了范围,还涵盖了被制造商整修后用于零售的产品。
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