I'm also from Siemens APT. In the past, the LOGO was APT, with a red circle next to it and a right angle of 9 in the middle. In the past, I said it was 8.9 o'clock in a meeting? Sun, the LOGO has not changed now, but the manufacturers have changed, which are Suzhou Siemens Electric Appliance Co., Ltd. Shanghai Branch and Tiantai Branch. In the past, the second worker was wholly acquired by Suzhou Siemens. But now all the products are not marked with SIEMENS, because it is very expensive,,, hehe, I don't know how to explain it.