Black Polyamide 11 Black Polyamide 11 from Guillaume Crédoz Black Polyamide 11 Black polyamide 11 comes from a renewable source (Castor oil). It can be polished by our vibratory tumbler to create parts comparable to cast ABS. View Website gLike Black Polyamide 11 Black polyamide 11 comes from a renewable source (Castor oil). It can be polished by our vibratory tumbler to create parts comparable to cast ABS. View Website 3D Modeling Share R 7 n Guillaume Crédoz Principal at RapidManufactory Beirut, Lebanon Follow Contact