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Antistatic folder/cover,Sizes from A4, A3, A5, A6, A7 to B4, B5, B6, B7, B8
High transparency, permanent anti-static, surface resistance value is 10^6-10^10 ohm
Style has a short side opening, and used for anti-static workshop, clean workshop file collection
There is a bilateral opening, for anti-static cleanroom workshop, workshop loading process records
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