
STEEL BARS - HOT ROLLED BULB FLATS - DIMENSIONS, WEIGHTS, PERMISSIBLE VARIATIONS, STATIC VALUES
出版:German Institute for Standardisation (Deutsches Institut f眉r Normung)

專家解讀視頻
STEEL BARS - HOT ROLLED BULB FLATS - DIMENSIONS, WEIGHTS, PERMISSIBLE VARIATIONS, STATIC VALUES
出版:German Institute for Standardisation (Deutsches Institut f眉r Normung)
專家解讀視頻