Track link assembly for excavators and bulldozers material:40Mn2 HRC55-58,Depth:8-10mm ... have any requirements.Caterpillar excavators:320,330,325,225,345,E200B,E120B,E70BKomatsu excavators:from PC20 to PC400,such as PC20 ... parts for:KATO,JOHN DEERE,CASE,SUMITOMO,YANMAR,SAMSUNG-H.I.,MITSUBISHI,O&K,DOOSAN...and other brands etc. Track link assembly for excavators ...