FLANG JACKS, FS-20, FS-30 1.Description: FLANG JACKS2.ISSA CODE : 615184 , 6151853.MODEL NO.: FS-20, FS-304. Technical parameteCODEMODEL61 51 84FS-20 6kg/set61 51 85FS-30 12kg/set5. Application: as one hand tool for flan6. Packing: 2pcs/set, 1 set / BOX Flange Jacks FS-20, Flange Jack FS-30