Uru arụmọrụ· Multi-arụ ọrụ mgbakwunye maka polyamides· Mma agbaze nhazi nke polyamides· emelitere okpomọkụ ogologo oge na nkwụsi ike foto· Enwekwukwa ike ịjiji, njikwa dị mfeNdakọrịta kachasị mma na polymers