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12 Series Blocks contain powerful 4" (102mm) sheaves to handle the loads generated by large offshore yachts. Highly polished Stainless Steel are reinforced with Stainless Steel V-Straps for strength and durability under load. Precision machined aluminum sheaves feature our self-contained Universal Circuit package with the Nomex(tm)/Teflon(tm) composite bearing and twin bearing races for maximum thrust load capacity.
Schaefer 12 Series Blocks
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