flat file 1) 6" 2) CE/GS/SGS/ISO9001 3) saw file flat file1) We are the first factory of manufacturing guide bar, ... chain, sprocket, rim, wrench, chain breaker, rivet spinner, and saw file, trimmer line and so on.2) Our factory has been ... 's more, we have also passed the assessment of the quality standardization.3) Our main markets are North America, South America ...