
EN 10216-3 SEAMLESS STEEL TUBES FOR PRESSURE PURPOSES - TECHNICAL DELIVERY CONDITIONS - PART 3: NON-ALLOY AND ALLOY FINE GRAIN STEEL TUBES
出版:British Standards Institution

專家解讀視頻
EN 10216-3 SEAMLESS STEEL TUBES FOR PRESSURE PURPOSES - TECHNICAL DELIVERY CONDITIONS - PART 3: NON-ALLOY AND ALLOY FINE GRAIN STEEL TUBES
出版:British Standards Institution
專家解讀視頻