combine harvester knife blade guard 1.65Mn casting 2.used for combine harvester 3.hardness: HRC 38-44 4.mold free: no nee combine harvester knife blade guard:1.65Mn 2. application: combine harvester3.hardness: HRC 38-434.mold free: no need5.sample release time: with 15 work days.6.payment term: irevocable L/C at sight or T/T 30% before production and the balance 70% after sample are approved. ...