An annular mold for curing an annularring tread is disclosed.
一种治疗一环形胎面环模被披露。
2
This particular planetary nebula, pictured above and designated Shapley 1 after the famous astronomer Harlow Shapley, has a very apparent annularring like structure.
A plurality of vertically long annular blanks 3 are punched out from the material 2 having a prescribed width, and the vertically long annular blanks 3 are formed on the annularring-shaped member 1.