... copy and download, please get our approval firstly, thank you! (*^_^*) circular saw blade for the wood Super-hard processing of ... with excellent impact-resistance and general wear-resistance. Generally applied in worse or general equipment to machine materials of lower hardness ... of materials like M42, ASP60, MPM, HSSCo10 etc, and can get 4-6 times lifetime, it has higher performance/price ration ...