... to manufacture all kinds of screw support block and sliding platform, have high precision machining, guaranteed ... 29 0.20Bearing support blocks, support blocks, nuts, cover, sleeve 180.00BUM 1052 X 52 ... 32 0.30Bearing support blocks, support blocks, nuts, cover, sleeve 180.00BUM 1268 X 68 ... support blocks, support blocks, nuts, cover, sleeve 320.00FOBtianjin:28$ Circular flange Support Block Series Table