2018년 3월 9일

SNR490B, Bar for building structure JIS G 3138

SNR490B, Bar for building structure JIS G 3138 STEELMAX Steel Story   SNR490B, JIS Bar for Building Structure STEELMAX Steel Story. SNR490B は, 建築構造用丸棒に対する規格です JIS G3138により、SNR490B, […]
ABR400, ABR490, ABM400, ABM490, Bolt Steel
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