Agree with you on this Chris....all ST tires AREN'T manufactured the same way.....The Sailun is one "exception to the rule" of ST tires being cheaply manufactured with basically NO quality standards built into the process. IF the "other" ST tire manufacturers have these quality processes in place, it's certainly not highly touted or lauded by the very tire manufacturer themselves ..which leads me to believe, they too don't have much confidence in their very own tires...just another cheap tire sold in mass volumes to rv manufacturers to save a buck and pass the inferior product on to a customer that thinks the manufacturer has their best interest at heart....Not all rv manufacturers mind you, but a LOT of them to be sure...just go to an rv dealership and look at the brand name of most tires on the TT's and 5er's and convince yourself that most manufacturers haven't cut corners on one of the more important components on the rv....any way to save a buck and charge the customer more....I doubt they care if your setting on the side of the road due to a tire failure, they have their money and life goes on.....
Sailun tires, to me, are manufactured with pride and confidence in their product due to the certifications they have earned...if they didn't produce a quality product, or care whether they had a "good reputation" or not, you wouldn't see these accreditations in place. Those who have been a part of these certification requirement audits and understand how they are earned, as I have, KNOW these mean a lot in the manufacturing process and speaks volumes for the quality manufactured into the product..