Alloy steel or stainless steel material Pellet diameter from 2mm to 16mm useful life is 1000~2500T Material: Alloy steelUseful life: 800~1500TMaterial: Stainless steelUseful life: 1500~2500TPellet diameter: 2~16mmMatching with: SZLH250, SZLH320, SZLH400, SZLH420, SZLH508,ect Ring die for SZLH250,SZLH350,SZLH420,SZLH508, QAR ring die