低温ねじ棒

  • ASTM A320 グレード L7 低温合金鋼ねじ棒

    ASTM A320 L7 低温ねじロッド

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

  • ASTM A320 グレード L7M 管理硬度低温ねじロッド

    ASTM A320 L7M ねじ付きロッド

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