WorkVenture gives you an inside look at what it's like to work at T.t.mechanical System Co., Ltd., office & team photos, reviews and more. This is the T.t.mechanical System Co., Ltd. Company Page. All content is posted anonymously by employees currently or previously working at T.t.mechanical System Co., Ltd..Apply to Posco Coated Steel ThaApply to SagitateApply to MainspringApply to PPM