A na-eji ihe ndị na-eme onwe ha mma na-eme onwe ha ka ọ bụrụ ihe na-edozi onwe ha, nke mejupụtara ngwakọta nke PTFE, carbon, graphite, fiber glass, polymer organic matter na nchara azụ.Ihe mejupụtara ya na-ejikọta uru nke ọtụtụ ihe, na-egosi njirimara magburu onwe ya pụrụ iche: sh ...
GỤKWUO