According to the provisions of the chapter on as-built drawings in GB/T50328-200 1, the original drawings can be used as-built drawings with little or no changes, and the signature on the drawing frame is of course the design unit; Many changes have to be redrawn, and whoever draws them will sign it.
Indicate the basis No matter which signature is on the frame, each picture must be stamped with a standard completion stamp, and the signature in the completion stamp is complete.