... manufacturers and expoeters of base jack in china.We are able to supply high quality base jack at competitive price.Customerization ... future.Material: Q235,Q195Type:Adjustable base jack,adjustable U-Head Jack,Socket Base &Universal Jack,Heavy Duty Shoring Jacks(10T-150T ... ) for cribs/trestles,adjustable screw jack,,screw base jack.Finishes: Hot Dipped Galvnaized,Electro Galvanized,Painted. ...