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If the scaffold was higher than 2 meters have handrails on higher ground, scaffolding, not less than 90 cm แถ่ไม่ over 110 cm.Must have a flagship between floor scaffold with handrails. Or stay away from the floor scaffolding around 45 cm. And with baffles or feet of high fall 15 cm around the floor scaffolding. Except when circumstances ไม่อำนวย.
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