1.30 years' manufacture experience 2.durable, short,sharp,small,dense 3.superior quality at best price 4.special tooth shape NameStandard typeGeneral HeightWork AnglePitchRoot Width T/"cylinderAC2820*015602.80201.500.60717AC2815*015602.80151.500.60717AC3015*015803.00151.500.80538AC3215*013803.20151.300.80620AC3515*015803.50151.500.80538GC3210*018903.20101.800.90398GC5020*045255.00204.502. ...