1. It is produced by Wandai. 2. SD does not have the highest level. FG and HGUC are 1:144, MG is 1:100, and PG is 1:603. There is no comparison between SD models, because The body shape is completely different from that of the prototype, basically the head is big and the body is small. 4. You can see from the price that the quality of domestic boards cannot be compared with the original ones. 5. GP-03D is released, of course it is from BANDAI. SD does not have a scale. HG has released 1:144 and 1:550. There is also a gashapon version of 1:400. 6. If you are not from Guangzhou, no I know, but they are basically sold in model shops.