What is the sign of Siemens APT switch?

I'm also from Siemens APT. The previous LOGO is very appropriate, with a red circle next to it and a right angle of 90 to the left in the middle. I used to say 8.9 o'clock at the meeting? Sun, the logo has not changed now, but the manufacturer has changed. It is Suzhou Siemens Electric Appliance Co., Ltd. Shanghai Branch and Tiantai Branch. In the past, the second worker was wholly-owned by Suzhou Siemens. But now all the products are not labeled Siemens, because they are very expensive, hehe, I don't know how to explain it.