·BJX52,BJX-20/4,BJX-20/8,BJX-20
·BLA53-1,BLA53-2,BLA53-2A,BLA53
·BXM-4,BXM-6,BXM-8,BXM-10,BXM-1
·BXD-2,BXD-4,BXD-6,BXD-8,BXD-10
·BDH-A ,防爆电话机
·BDH-O,防爆电话（带耦合器）
·BDL-24V,BDL-36V,BDL-110V,BDL-2
·BDN-1.5/7,BDN-1.5/9,防爆电热油
·BDZ-32/3,BDZ-63/3,BDZ-100/3,BD