标 准 编 号:BS EN 14870-1-2004 简体中文标题:石油和天然气工业.管道运输系统的感应管弯头、配件和法兰.感应管弯头 繁体中文标题:石油和天然气工业.管道咻斝到y的感应管弯头、配件和法兰.感应管弯头 English Name:Petroleum and natural gas industries - Induction bends, fittings and flanges for pipeline transportation systems - Induction bends