מתקדם סימטריה האפוטרופוס is polystyrene safe ארוחת צהריים ברד כל שבוע
Amazon.com: Danger Do Not Handle Without Wearing Safety Shield Or Safety Glasses OSHA Sign, 24x30 Inches, 55 mil thick HDPS (high density polystyrene), Made in USA by Sigo Signs : Industrial &
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Amazon.com: Be Careful Be Aware Be Safe Sign, OSHA Safety First Sign, 10x14 Inches, 55 mil thick HDPS (high density polystyrene), Made in USA by Sigo Signs : Industrial & Scientific
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Polystyrene is confirmed as a safe, functional barrier for food contact
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