Two men suspected of peddling heroin are facing drug trafficking charges after cops recovered 9,000 bags of the opioid, Hampden District Attorney Anthony D. Gulluni said.Julio Sanchez, 39 of Springfield, and Andy Espinal-Antonio, 32 of Worcester, were arrested in Springfield Saturday by members of the Hampden County Narcotics Task Force on charges of trafficking more than 200 grams of heroin and conspiracy to violate drug laws, Gulluni said in a statement yesterday.Espinal-Antonio was also charged with possession of heroin with intent to distribute, authorities said.