... EN131,ISO 9001,CE and BV 2.Material:Aluminum 3.ladder joint for multi-purpose ladders 4.Safe and easy to operate 1.With ... 9001,CE and BV certificates2.Ladder joint for multi-purpose ladders(Small joint )3.3 step multi-purpose aluminum ladder thickness of aluminum 1.2mm 3.Material :aluminum4 ... A:380mm,B:1260mm,C:1270mm,D:2300mm,E:4720mm ladder joint for multi-purpose ladders Max load 150kg Small joint