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By certification 
Our products have obtained ISO 9001 ---2000 International Quality System Authentication and ISO14001--2004 Environmental System Management Authentication. The grinding balls is awarded the famous brand pro-ducts of Shandong province.
We hold the only grinding steel ball automatic production line of roll forging machine in China which was developed and created by ourselves. The raw materials that we use are high quality alloy steel. The hardness of grinding steel ball is high and steady, and also toughness is good through controlled by equipment. The quality of our products can meet different requirement of clients in different countries and regions.The grinding balls is awarded the famous brand pro-ducts of Shandong province.
Hardness(HRC) 58-62 60-64 61-65 59-64 60-65 60-65
Cr % 14-18 14-18 18-22 10-14 11-15 16-20
C % 2.0-3.0 2.0-3.0 2.5-3.5 2.5-3.5 2.0-3.0 2-3
Wear Resistant Good Good Excellent Excellent Excellent Excellent
Impact resistance Good Excellent Excellent Low Low Low
We hold the only grinding steel ball automatic production line of roll forging machine in China which was developed and created by ourselves. The raw materials that we use are high quality alloy steel. The hardness of grinding steel ball is high and steady, and also toughness is good through controlled by equipment. The quality of our products can meet different requirement of clients in different countries and regions.The grinding balls is awarded the famous brand pro-ducts of Shandong province.
Hardness(HRC) 58-62 60-64 61-65 59-64 60-65 60-65
Cr % 14-18 14-18 18-22 10-14 11-15 16-20
C % 2.0-3.0 2.0-3.0 2.5-3.5 2.5-3.5 2.0-3.0 2-3
Wear Resistant Good Good Excellent Excellent Excellent Excellent
Impact resistance Good Excellent Excellent Low Low Low
