I highly recommend Victor Kung at VKmusic.ca
I've known and bought from Victor for over twenty years and he is an honest, stand-up guy. Very enthusiastic about music and providing the most cost-effective solutions for audiophiles on a budget.
He doesn't carry all types of Chinese tubes, focusing mainly on making sure he has quality tubes of the types needed for his customers who purchase Ele-kit and Sunvalley kits through him (Victor is the North American distributor for both brands). He tests everything with his Amplitrex tester. His prices for tubes are some of the best I've seen and his customer service is superb.
If he carries what you need you can buy in complete confidence.