
Buried Pipes, Joints And Fittings Of Polyethylene (pe 80 And Pe 100) For The Transport Of Gaseous Fuels - Materials, Dimensions, Technical Terms Of Delivery, Tests And Marking Of Conformity
出版:Osterreichisches Normungsinstitut

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Buried Pipes, Joints And Fittings Of Polyethylene (pe 80 And Pe 100) For The Transport Of Gaseous Fuels - Materials, Dimensions, Technical Terms Of Delivery, Tests And Marking Of Conformity
出版:Osterreichisches Normungsinstitut
专家解读视频