供应Q71X-16，D71X-16C，D71X-16P，对夹蝶阀

对夹蝶阀型号：D71X-10 D71X-10C D71X-10P Q71X-16 D71X-16C D71X-16P D71J-10 D71J-10C D71J-10P D71J-16 D71J-16C D71J-16P D371X-10 D371X-10C D371X-10P D371X-16 D371X-16C D371X-16P D371J-10 D371J-10C D371J-10P D371J-16 D371J-16C D371J-16PD671X-10 D671X-10C D671X-10P Q671X-16 D671X-16C D671X-16P D671J-10 D671J-10C D671J-10P D671J-16 D671J-16C D671J-16PD971X-10 D971X-10C D971X-10P Q971X-16 D971X-16C D971X-16P D971J-10 D971J-10C D971J-10P D971J-16 D971J-16C D971J-16P