WorkVenture gives you an inside look at what it's like to work at Ongas Lpg Engineering Co., Ltd., office & team photos, reviews and more. This is the Ongas Lpg Engineering Co., Ltd. Company Page. All content is posted anonymously by employees currently or previously working at Ongas Lpg Engineering Co., Ltd..Apply to Le BangkokApply to STUDIO 96Apply to RangyApply to TMF