ASTM A320 L7
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Varilla roscada de baja temperatura ASTM A320 L7
ASTM A320 Grade L7 quenched-and-tempered, impact-tested alloy steel threaded rod for low-temperature pressure equipment and industrial bolting.

ASTM A320 Grade L7 quenched-and-tempered, impact-tested alloy steel threaded rod for low-temperature pressure equipment and industrial bolting.
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