hihg chrome casting steel ball

1.quality system authentication:ISO9001:2008 2.diameter:25mm-130mm 3.material:special high chrome1,special high chrome2,special high chrome,medium chrome,low chrome,etc 4.characters:even hardness,unbreakable,high impact value,high combined efficiency of grinding mill,etc 5.application fields:metallurgical sellection in mine,grinding mill in power plant,cement plant,chemical industries and machinery,etc 6.color:black 7. packing terms:container bags or steel drum 8.delivery terms:usually 10days after signing the contract 9.payment terms:L/C,T/T