1.Material:Q235,Q195 2.Finishes:hot dip galvnaized,electro galvanized 3.Variety:Solid &Hollow 4.Size ... long-terms business relations with you in the near future.Material: Q235,Q195Type:Adjustable base jack,adjustable U-Head Jack, ... for cribs/trestles,adjustable screw jack,,screw base jack.Finishes: Hot Dipped Galvnaized,Electro Galvanized,Painted.Variety:Solid &HollowSpecification: DiameterHeight32mm ...