衬氟立式止回阀H42F46
衬氟放料球阀FQ41F46
蜗轮法兰衬氟蝶阀D341F46
法兰衬氟堰式隔膜阀G41F46
衬氟直通式截止阀J41F46
手柄法兰式衬氟蝶阀D41F46
衬氟旋塞阀X43F46