No fragile areas allowed on steel. As described on the sketch above A/B ratio must be 1/3 for PP raw material . For ABS, PA, PC, PC + ABS ve PA+GF raw materials , This ratio can be considered as A/B= 1/2,5 . During RFQ and Pre-study phase, Toolmaker must analyse and alert these non-conformity areas to Assan-Hanil Tool Engineer.If Toolmaker doesn’t inform this type of non-conformities in pre-study phase, Toolmaker will take all responsibilities for correction & repair of the mold in project and serial life phase without any cost . Toolmaker is the unique responsible to detect fragile areas in core-cavity steel