... Switzerland directly 2) CE/GS/SGS/ISO9001 3) Assembled file chain saw file 1) An assembled file includes: one round file, one ... and Switzerland directly as Oregon's exactly 3) We are the first factory of manufacturing guide bar, saw chain, and sprocket in China ... . The product line includes guide bar, saw chain, sprocket, rim, wrench, chain breaker, rivet spinner, and saw file, trimmer line and so on. ...