[en] Based on the Design Description Document (DDD) of Fueling and Wall Conditioning System, the design and manufacturing study of the GIS and GDC have been carrying on in CN PT. The recent progress of the GIS and GDC is introduced respectively: the progress for some key techniques has been obtained; the detailed designs of GDC electrode have been finished; some critical components in GDC system have been made; the key components of GIS have been investigated and the structure of GVB, which based on the candidate valve and components, has been designed; the detailed designs of the straight segment and adaptor in gas supply manifold are being done; the test schemes for the key components of GIS and GDC have been proposed; some tests of the critical components have been done and the preliminary data have been got. (author)