... USA 2) CE/GS/SGS/ISO9001 saw chain 1) Parameter SpecificationpackageG.W(kgs)Oregonmeasurement drive ... drive links after re-mill blade 4times and adjust length 4times(total 7.3mm).2) Material: ... 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 ...