this thing seems to be completely identical with Tideace FM-CR266 and also Permeants ST-09 (which is a new retail higher-endish brand of Tideace in mainland china so these two are the same frameset) which are built by Haideli, but i can't be sure if they are "same mold different manufacturer"(common thing for open molds) or one purchasing framesets from the other just for distribution(which means "same manufacturer different retailer").