OK genious, then how about instead of going on a rage you enlighten everyone on why the crankshaft DID break?
Pretty sure most people here know those marks aren't put onto crankshafts for the purpose of identifying them as cast or forged, but if the crank maker doesn't grind them off, they CAN be used for that purpose
Not all Chinese crankshafts, seems to be a problem with Eagle cranks. Scat cranks are also sourced from China (at least the blanks are) and they don't seem to have those problems. But again, why don't you enlighten the rest of us as to what crankshafts ARE of good quality? Having a bad day or something? Geez, get laid... it might improve your mood.