Adjustable Jack is using for adjust the distance above ... 42*2.5 mm;Certificate:CE,ISO9001:2008; Base Jack, or adjustable jacks or scaffolding jacks, as they ... ground. Ring lock system scaffold components design load STANDARDLEDGERSCREW JACK SpaceLoadLengthCentralize LoadUniform LoadLengthDesign LoadmKN/poleMKNKN/mmmKN0.6400.94.512L1 ... ShoreT32×400Wheel7826E-26JackT38×350T38×400T38×500 Adjustable Jack