recently I ordered manufacturing of single layer PCBs to one of China company. Yesterday I received boards and there are two mistakes on them, so I can't use them.
1: Soldering layer is mirrored (although on board is text for orientation)
2: Silk screen is on wrong side (on the same as soldering layout)
I made gerbers with Eagle as written (bottom layer for soldering and top layer for silk screen) and also checked them with gerber viewer. Before production, gerber's have been also checked by technician guy of this company and there have been no complains.
I am wondering if I made mistake and if so, where? Should be gerber layers named only by gerber file name or where else are specified attributes of mirroring and proper side of the boards (top or bottom)?