Social relations systems and work cultures among Hamedanian mechanics (the case of Chaparkhaneh Street)

City is a place and field for various social forces working. Contemporary Iranian city is mostly as a auto-city. All of the cities from megacities to small towns are full of cars and its related services. all persons who are active in mentioned sector gathered together in special spaces in city with specific cultural characteristics(mechanics subculture) over the years,this make their different with other parts of society and their dominant culture in a special geographical area. The Chaparkhaneh of Hamedan as an urban space includes activities and services related to car repairs.as an informal sector many people are working in this area. This geographic context provides a social relations system and values in which entrants should accept its rules and manners. The aim of the present research is to study social relations system and working culture in Chaparkhane, we used qualitative methods based on grounded theory. The finding of the research show that there are two patterns in this field the first is dominant of master of skillfully and the second one is social interaction models. . The first pattern is based on craftsman power in order to protect work formation between craftsman and apprentice and it causes two aspects: visible and invisible power of craftsman. The second pattern of interaction social relations mainly seen in the context of family base business and activities like car spare parts selling.