{"product_id":"grinding-balls-8-per-set-for-hardgrove-grindability-hgi-tester","title":"Grinding Balls, 8 per Set, for Hardgrove Grindability (HGI) Tester","description":"\u003cp\u003eSet of 8 grinding balls used in the Preiser Hardgrove Grindability Index Apparatus.  Under precise control, these balls will grind the sample to determine the overall hardness of the material being tested.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e","brand":"Others","offers":[{"title":"PK (1)","offer_id":51111701119291,"sku":"Z90-9300-03-PK","price":82.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0921\/2041\/6571\/files\/Z90-9300-03_753ed8b1-302a-4e75-8cf5-211d79db908d.png?v=1784722661","url":"https:\/\/preiser.com\/products\/grinding-balls-8-per-set-for-hardgrove-grindability-hgi-tester","provider":"Preiser Scientific","version":"1.0","type":"link"}