Construction machinery undercarriage parts

Track roller applicable for:
PC30,PC40,PC60-5,PC60-7,PC100,PC200-3,PC200-5,PC300,PC400
EX55,EX60,EX70,EX100,EX200-1,EX200-2,EX300,EX400
E70B,E120B,E200B,E325,E330
SH60,SH110,SH120,SH200,SH340,SH300
SK60,SK100,SK200,SK230,SK320,SK300-3
HD250,HD450,DH770,HD1250
R60-5,R60-7,R200
DH55,DH220
MS110-5,MS180
EC210
D31,D50,D60
D4D,D6D

Material:50MN

Hardness:HRC55-60

Hardness depth:5-6MM