Very well manufactured bottom bracket very good quality.
Nice price compromise. Very light, looks like the bearings 30x17x7 are not ceramic (but many balls). There are a few picture to compare with MUQZI (MUQZI has the same size bearings but seems to be ceramic). All the bearings I've ever opened were greased from one side only. It is better to put more grease (I use any Lithium, for both sides of a bearing).