Polyamide (PA) inowanzo zivikanwa senaironi, uye refu kabhoni ketani nylon inoreva mhando dzenaironi dzine gumi kana anopfuura mapoka emethylene pakati pepedyo amide zvisungo muketani huru ye macromolecule, senge PA11, PA12, PA1010, PA1212, PA1012, nezvimwe. Pakati pavo, PA610 uye P...
Verenga zvimwe