伞齿轮传动焊接闸阀 Z460Y-200,Z560Y-200,Z462Y-200,Z562Y-200,|产品总汇|无锡市昌林自动化科技有限公司手机版

伞齿轮传动焊接闸阀 Z460Y-200,Z560Y-200,Z462Y-200,Z562Y-200,
the middle may be of either flangeorsell-sealing type．as specified by customer