... 38CrMoALA or W6Mo5Cr4V2.4,Feeding styles are of vaieties:single screw,double screw,hollow screw, forced-feeding, side-feeding, liquid-adding etc. ... hydroxide, antimony oxide.3,Functional machine pellets: PP, PA, PS etc.+ starch :de-composing machine pellets; PE+fog-preventing dipper, ... ; PE, EVA, ABS etc. +carbon black: black machine pellets.4,Colored machine pellets: PE, PP, ABS, AS, PA, EVA, PET ...