1.Model for durability,strong force
2.They are made of materials carefully selected by a strict processing in consideration of durability.
3 we can produce them as your drawings
4 Materials: 40Cr Or 42CrMo
5.Match for hydraulic breaker of  Soosan,Furukawa,Toku,General Breaker,NPK,Krupp,Komac,Daemo,ect.