Look at the picture, there is no steel number on it. I'm not sure.
The following is the trademark map I found on the trademark website. Do you think you can prove it?
Maanshan Iron and Steel (Group) Holding Co., Ltd.
/trade/servlet? Search = SX _ tiggudes & ampregno =1975832 & IntCls = 6 & ampiIndex=2
Yanshan brand of Hebei iron and steel group
/trade/servlet? Search = SX _ Tigudes & Ampregno =174891&; IntCls = 6 & ampiIndex=0
/? S = thread and thread. Tid = 73309 & Bid =763.