
Pneumatic Tube Systems; Steel Conveyor Tube 90 Deg. Bends; Dimensions, Technical Delivery Conditions
出版:German Institute for Standardisation (Deutsches Institut für Normung)

專家解讀視頻
Pneumatic Tube Systems; Steel Conveyor Tube 90 Deg. Bends; Dimensions, Technical Delivery Conditions
出版:German Institute for Standardisation (Deutsches Institut für Normung)
專家解讀視頻