Each with a plurality of holes are offset

Each with a plurality of holes are offset.To prevent individual effort, grid magnet to turn the bolt, so that every time the power is not too large. If the maximum amount of interference, pressed into the bowl with the bolt tile frame is very difficult, grid magnets it can be Crusher bowl-shaped tile rack frame with the mating surface is heated above that of the ambient temperature around 400C.tighten all the bolts to ensure crusher bowl-shaped tile rack with the rack fitting surface completely fit