S&P has honed detailed heat-treating process over 38 years

CLOSER LOOK: S&P Heat Treating Inc. Vice President Mike Rapoza examines parts at the company’s Warwick facility, which offers metal-hardening services for a variety of industries.
PBN PHOTOS/MICHAEL SALERNO
CLOSER LOOK: S&P Heat Treating Inc. Vice President Mike Rapoza examines parts at the company’s Warwick facility, which offers metal-hardening services for a variety of industries.
PBN PHOTOS/MICHAEL SALERNO

Each year thousands of metal parts of all shapes and sizes arrive at S&P Heat Treating Inc., where they undergo processes crucial for them to work correctly. “If you just form a knife out of a piece of regular steel, it won’t hold the sharpness,” said Mike Rapoza, vice president of S&P Heat Treating. “If

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