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http://www.satismachinery.com/machinery-spare-parts/1174009.htmlProduct DescriptionMandrels of Return Bender is special designed and manufactured for heat exchange coil production
It is spare parts for maintemance purpose
Heat treatment hardness up to HRC 52--56
Polish to a 8 Micron or better finished on all surfaces excepet bore and ends
Please contact us if you want to know more about return bender mandrels