1: bucket teech for hyundai excavator R210 R290 R300 R450 , 2: alloy material 3: hard , very wearable Hyundai bukcet teech . bucket adapter 61QA-31310, 61E7-0105 , 61EH-11150 , 61NA-31310 , 61EH-11150 , 61N8-31310 teech for HYUNDAI meanwhile, we have adapter, teech, pin for KOMATSU CAT VOLVO ,DOOSAN , HITACHI