
TECHNICAL DRAWINGS - SIMPLIFIED REPRESENTATION OF PIPELINES - PART 3: TERMINAL FEATURES OF VENTILATION AND DRAINAGE SYSTEMS
出版:International Organization for Standardization

專家解讀視頻
TECHNICAL DRAWINGS - SIMPLIFIED REPRESENTATION OF PIPELINES - PART 3: TERMINAL FEATURES OF VENTILATION AND DRAINAGE SYSTEMS
出版:International Organization for Standardization
專家解讀視頻