저온 나사봉

  • ASTM A320 등급 L7 저온 합금강 나사산 로드

    ASTM A320 L7 저온 나사봉

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

  • ASTM A320 등급 L7M 제어 경도 저온 나사봉

    ASTM A320 L7M 나사형 로드

    ASTM A320 Grade L7M controlled-hardness, impact-tested alloy steel threaded rod for specified low-temperature and project-qualified sour service.