This Gillette Tech razor was made for about 30 years in various countries using various materials, as far as we can tell there are no set rules on how, who, and where, what materials were used, and with what models, so I'll simply judge by weight and visual observation and give as accurate a description as I can.
This Tech is USA made and has a durable nickel finish, it has no plate loss and 'Gillette' is embossed on the cap. Its quite a heavy razor for its size, so I'd say brass handle, pressed steel base plate and alloy cap.
The razor is in good condition with no damage apart from expected wear and tear.
The razors weighs 58 grams and stand 82 mm high.