... and Switzerland directly 2) CE/GS/SGS/ISO9001 chain saw file guide1) 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, ... the CE, GS, SGS, ISO9001 conformity certifications. hand tools chain saw file guide