고압 볼팅
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A194 2H 너트가 포함된 ASTM A193 B7 스터드 볼트
ASTM A193 Grade B7 quenched-and-tempered alloy-steel stud bolts with compatible ASTM A194 Grade 2H heavy hex nuts for flange joints, valves and pressure equipment.
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ASTM A193 등급 B7 합금강 헤비 육각 볼트
ASTM A193 Grade B7 alloy steel heavy hex bolts are quenched-and-tempered chromium-molybdenum fasteners widely specified for high-pressure, elevated-temperature and special-purpose industrial bolted joints.