
Heavy Hinged Doors On Ships - Part 1: Weathertight (iso-type), Classification, Technical Delivery Conditions
出版:German Institute for Standardisation (Deutsches Institut für Normung)

專家解讀視頻
Heavy Hinged Doors On Ships - Part 1: Weathertight (iso-type), Classification, Technical Delivery Conditions
出版:German Institute for Standardisation (Deutsches Institut für Normung)
專家解讀視頻