WorkVenture gives you an inside look at what it's like to work at Gemac Machinery Co., Ltd., office & team photos, reviews and more. This is the Gemac Machinery Co., Ltd. Company Page. All content is posted anonymously by employees currently or previously working at Gemac Machinery Co., Ltd..Apply to Thai Denki Engineering & ServiceApply to VS groupApply to PiggipoApply to ROSSI