I also bought a quilt cover of Langsha for 149., the price of famous brand. But there is no trademark. Contact customer service, customer service must say yes. They also said that they were authorized by Langsha to let me check in official website. But he didn't say anything when he asked him the official website website several times. Later, he said he could return it if he didn't believe it. It's really a little puzzling. I felt something was wrong, but I returned it. It is certain to play alongside big cards. It's not good either. It doesn't even have a trademark! The enterprises in China are also hehe!