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Hongkong Royce Metal Products Co., Ltd. E-mail: [email protected]
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Surface Treatment: Untreated, Painting Or Hot DIP Galvanizing 5. Steel Grating Standards: A) China: YB/T4001-1998 B) USA: ANSI/NAAMM UK Walkway , Galvanized Steel Grating Clip Home Steel Structures
or Hot DIP Galvanizing 5. Steel Grating Standards: A) China: YB/T4001-1998 B) USA: ANSI/NAAMM UK: BS4592-1987 D) Australia: AS1657-1985 Walkway , Galvanized Steel Grating Clip Home Steel Structures