1.Popular ọhụrụ ụkpụrụ na ọgaranya size2.High mma ọgba tum tum & ụgbọ ala & ụgbọ ala ụgbọ ala na tube na ọnụahịa asọmpi3.High ike ike na ezigbo elasticity4.Excellent eyi iguzogide na ikuku-tightness5.Anyị gafere CCC;ISO;GCC;SON wdg akwụkwọ