BQG350/0.2型气动隔膜泵 铝合金材质风动隔膜泵

矿用气动隔膜泵三寸的型号：BQG460/0.2BQG340/0.3BQG450/0.2BQG320/0.3矿用气动隔膜泵2寸的型号：BQG350/0.2 BQG250/0.3 BQG200/