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Kingyear W16 serial HSS roll products are the result of over 10 years continuous research & development. The special chemical analysis,Website:http://www.kyhssrolls.com, melting process, centrifugal casting and heat treatment processes are the key contributions to the utmost performance among many other similar products. Kingyear W16 serial HSS ring rolls are most suitable for highly demanding modern day rod & bar mill operation.