Conforms to "GB12142-2007" national compulsory standards (with En 131 approval) High-strength aluminum alloy 6063 Conforms to "GB12142-2007" national compulsory standards (with En 131 approval) High-strength aluminum alloy 6063 Anti-skid strips on the rung surface & special riveting echnology for rungs and brackets Can be used as scaffold, ladder,work platform Durable & light weight,easy to carry ...