furthermore, in first-rate mold solution co, ltd, for cavities which are of complicated shape or are damageable in certain parts, our designers design the parts hard to be processed or easily damaged into insert form and embed them into the basal body of the cavity, it is called insertion and splice cavity. Of course, for large and complicated cavity mold, the four walls of the cavity can be separately processed and inlaid into the mold sleeve and finally fitted with the soleplate.