- Rig Thai Engineering Co., Ltd.
- Steel Structure Building, Steel Structure Plant, Steel Piping, Pre-Engineering Building, Penstock, Hydromechanical Gates, Steel Bridges.
- Address:200 / 1 Moo 1 Soi Patthanachonnabot 3 Romklao Road, Kwang Klong-Song-Tonnoon, Khet Latkrabang
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