... is fire, petrochemical, metallurgical industries standing pipeline repair plugging tool.The tool on the screw force, pressure on the top plate, and ... platen 1pc11,SS Six angle boltM10×50 7pc4,SS concave small platen 2pc12,SS Six angle boltM12×180 1pc5,Stainless steel ... concave small press plate 1pc13,handle 1pc6,Stainless steel flange Hough fixture ...