Ranfit Metal and Alloys is Manufacture and Supply ASTM A193 B16 Bolts. ASTM A193 Grade B16 Studs and ASTM A193 B16 Nuts are fashioned from a chromium-molybdenum-vanadium combination steel. In spite of the fact that A193 B16 Bolts and Grade B16 Stud Bolts have equivalent quality necessities as Grade B7.
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