CBM1069-81 A型CBM1070-81 A型CBM1075-81 A型CBM1076-81 A型法兰青铜截止阀 截止止回阀(图1)
CBM1069-81 A型CBM1070-81 A型CBM1075-81 A型CBM1076-81 A型法兰青铜截止阀 截止止回阀(图2)