... PROTECTION. SHOCK ABSORBENT.NON-MARKING.COLOR: STANDAED BLACK.DOROMETER: SR:75+/-5 SHORE A HR:95+/-5 SHORE AOEM AND ... EXPERIENCE, PROFESSIONAL MANUFACTURERING TECHNOLOGY , AND A STRICT QUALITY CONTROL SYSTEM. 1",2", 3", 4", 5", 6" RUBBER WHEEL Verified Information This ... Acceptable Rockwell Hardness Tester HR-150A 1 3.0 Acceptable Production Flow: 1.Plate Cutting 2.Lathing 3.Grinding 4.Punching 5 ...