2W511-10-40防爆电磁阀ALV310F2C5二位五通板接气缸Aphe/ACHEM 面议 ALV310F1C5先导式隔爆电磁阀2W311-10-40贴装式CT6aphe ¥330.00 粉尘防爆电磁阀ALV310F3C5贴装先导式CT6隔爆ATEX认证Aphe ¥340.00 粉尘防爆SIL3认证ALS-500M2隔爆阀位开关反馈机械式无锡APHE 面议 SIL3认证本安防爆电磁阀BDV510C3进口本安线圈EXiaIICT6无锡BD 面议 Flameproof Solenoid Coil防爆电磁阀ALVC5-024换向CT6/aphe 面议