1, barrel fuskar zafi raguwa marufi na'ura yana da kayayyakin tsabtace, tsabtace, hatimi marufi, dustproof damping;

2, barrel fuska zafi shrinkage marufi na'ura da tightness da kuma tabbatarwa, karamin kayan aiki ba zai zama twisted a marufi Gabas ta Tsakiya;

3, zafi shrinkage marufi inji amfani da pof fim iya m kayayyaki, tare da m, kyakkyawan siffa, tsabtace da haske.