use compound taper technology size:square:60*60-450*450 round:dia90-500mm rectangular:120*340-365*480 the detailed information for copper mould tubeSize(mm): 90x90, 100x100, 110x110, 115x115, 120x120 130x130, 135x135, 140x140, 143x143, 150x150 155x155, 160x160, 165x165, 175x175, 180x180 200x200, 220x220, 100x170, 100x173, 130x240 150x200, 150x210, 150x220, 160x200, 160x220 150x225, 160x235, ...