Brother, if u drive on highways, then Chinese tires are not recommended, tires r v important for safety, so dont compromise on the quality. But if u drive within the city at normal speeds, then chinese can b tried. But online purchasing.... ask the seller to let u know the exact manf. Date mentioned on tire, saying "fresh piece" has no meaning.
If u can afford, then go for Nexen, they r cheaper than bridgestone and yokohama. Saif traders faisal town also gives its warranty(though tire warranty in actual is not more than a peace of mind). I have heard good reviews of nexen, got them installed in my car in september last year. Even here in sharjah, I hv seen many cars with nexen tires.
So the choice is urs, depending on use and budget.
Best of luck.