非零售用聚酰胺 meaning in Chinese

elastic filament of nylon-6, psy,≤50tex, not for retail sale
elastic filament of nylon-6,6,psy, 50tex, not for retail sale
elastic filament of nylon-6,6,psy,≤50tex, not for retail sale
elastic filament of nylon-6,psy, 50tex, not for retail sale
high tenacity filaments yarn of nylon-6, not for retail sale
high tenacity filaments yarn of nylon-6,6, not for retail sale
multiple or cabled yarn of nylon-6,6, n f retail sale
single yarn of nylon-6, with 50turns/m, not for retail sale
single yarn of nylon-6, with≤50turns/m, not for retail sale
single yarn of nylon-6,6, with 50turns/m, not for retail sale
single yarn of nylon-6,6, with≤50turns/m, not f retail sale