Mortise na Tenon Blocks Concave-Convex bụ ntinye osisi e ji arụ ihe maka ụmụaka na-eto eto. Ntinye a nwere ibe 211 e sepụtara site n'ụkpụrụ ọdịdị mortise na tenon nke ọdịnala ndị China, e mere ka ọ dị mfe ghọọ ụdị njikọ 30 dịka square dovetail na T-shaped tenon. E ji osisi walnut oji dị iji mee tenons ndị ahụ, mortises ndị ọzọ ka e ji osisi beech dị mfe mee, nke mere na e nwere ike ịmata akụkụ abụọ ahụ site na agba ha dị iche. E ji igwe ọrụ osisi wuo mkpirisi ndị a ma jiri aka rụchaa ọrụ ahụ. E nwere ọkwa mfe atọ, kwekọrọ maka ụmụaka site n'ọnwa iri na asatọ ruo n'afọ isii gafere, malite na ijikọ otu njikọ ruo n'iwu ihe ngosi ndị buru ibu.

Aha oru ngo : Concave-Convex, Aha ndị na-emepụta ya : Sha Yang, Aha onye ahịa : Shanghai Art and Design Academy.

Designskpụrụ dị mma mepụtara uru maka ọha mmadụ. Kwa ubochi anyi n’egosiputa ihe nlere puru iche nke n’egosiputa lence kachasi nma. Taa, anyị nwere obi ụtọ igosipụta atụmatụ mmeri nke na-eme ezigbo mgbanwe. Anyị ga-egosipụta ọtụtụ atụmatụ dị egwu ma na-akpali akpali kwa ụbọchị. Gbalia ileta anyi kwa ubochi iji kirie ihe omuma ohuru ohuru na oru ndi okacha amara n’uwa dum.