张英: 13429855906 QQ：1319471154 张茵: 13429855906 QQ：1319471154 优势供应西门子人机界面： 6AV6643-0AA01-1AX0 tp277-6 6AV6642-0AA11-0AX1 TP177A-6 6AV6642-0BC01-1AX0 TP177B DP 6AV6642-0BA01-1AX1 TP177B PN/DP 6AV6642-0DA01-1AX1 OP177B PN/DP 6AV6642-0DC01-1AX1 OP177B DP 6AV6643-0BA01-1AX0 OP277-6 6AV6643-0CB01-1AX1 MP277-8 TOUCH 6AV6643-0CD01-1AX1 MP277-10 TOUCH 6AV6643-0DD01-1AX1 MP277-10 KEY 6AV6644-0AA01-2AX0 MP377-12 TOUCH 6AV6644-0AB01-2AX0 MP377-15 TOUCH 6AV6644-0BA01-2AX0 MP377-12 KEY