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비쥬얼

Certifications & Patents

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Quality Environment System & Standards

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    ASME MO QSC

    Nuclear Plant Material Organization

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    ISO 9001

    Quality Environment System

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    KC

    Product for Water Piping System

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    KS B 1541

    Welded Fittings

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    JIS B 2311

    Japanese Industrial Standard:
    Steel Butt-Welding Pipe
    Fittings for Ordinary Use

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    API

    American Petroleum Institute:
    Steel Butt-Welding Pipe Fittings

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    ISO 14001

    Environment Management System

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    KS B 1522

    Korean Industrial Standard:
    Steel Butt-Welding Pipe Fittings for
    Ordinary & Fuel Gas Piping

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    KS B 1543

    Korean Industrial Standard:
    Steel Plate Butt-Welding
    Pipe Fittings

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    JIS B 2313

    Japanese Industrial Standard:
    Steel Plate Butt-Welding Pipe Steel
    Plate Butt-Welding Pipe

Grooved Products/Corporate R&D Center

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    UL - Couplings

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    UL - Pipe Fittings

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    FM - Couplings

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    FM - Pipe Fittings


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    Corporate R&D Center

    Korea Industrial Technology Association

Classification

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    KR(Korean Register)

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    ABS(American Bureau of Shipping)

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    NK(Nippon Kaiji Kyokai)

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    RINA(Registro Italiano Navale)

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    DNV(Det Norske Veritas)

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    LR(Lloyd’s Register of Shipping)

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    BV(Bureau Veritas)

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    GL(Germanischer Lloyd)

Patents and Utility Models

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    Patent No.

    10-0647065
    Pipe Coupling

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    Patent No.

    10-0696204
    Flow Control Valve

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    Utility Model No.

    0391294
    Pipe Coupling

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    Utility Model No.

    20-0415031
    Pipe Cutting Device

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    Utility Model No.

    0251147
    Integrated Branch Pipe

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    Utility Model No.

    0395080
    Flow Control Valve