At the request of the Tupperware Corporation in USA, we produced 7 ply cookwares that are bonded seamlessly together from bottom to sides.
 
The cookwares were made with aluminium with high thermal conductivity which was sandwiched between stainless steel that retains heat well and were complex in structure. We were not allowed to deviate much from the original designs of the covers or the bodies and had to work under the constraint.
 
Due to difference of opinions between the American head office who were our direct clients and the Japan Tupperware Company whose sales performance of cookwares is the best among their counterparts worldwide, the product never came to be produced on commercial basis. We were part of the project from the early research stage and the interesting project taught us a lot about the difference in uses and where we are particular about cookwares between the two countries.