What is Product line meaning?

OEM = OEM Standard product = parts produced to OEM specifications ( chipper knives - chipper steel, granulator knives - 1.2379 steel, screens - Hardox, etc. )

CE = Cost Effective product = parts produced to Customers specifiactions considering his needs ( knife holders not hardened, knives made from cheaper grades of steel but still good for its applications, etc. )

EP = Enhanced superior quality = parts produced from advanced materials of highest grades ( crowns from ASP or Tungsten carbide , screens from anticorro, granulator knives with TC incerts, etc. )