1. DROP-FORGED AND HEAVY DUTY 2. HEAT TREATMENT: HRC39-45 3. 45# CARBON STEEL 4. BLACK FINISH, SAND BLASTED AND CHROME PLATED 1. DROP-FORGED C CLAMP2. HEAVY DUTY3. SAND BLASTED AND CHROME PLATED FINISH; BLACK FINISH4. FRPM 1" (25MM) TO 12"(300MM) WOOD CLAMPS, DROP FORGED "C" CLAMPS
