Cheap Chinese metal products are always a crapshoot. Not worth the gamble on a long tour. Think of the expense if they failed on you and you had to wait a day or several to get some new bars at premium prices or you may not be able to source them at all depending on where you are. No way anyone here could give you a good answer as to whether some anonymous cheap product is going to last on a tour of unknown conditions or length. Stick with the proven brands. What country are you in now? It would help to know so someone can give you a good source to buy from at a discount.