- RUANGROJ P. STEEL CO.,LTD
- Address:172/24 Moo 10 Poochosamingprai Rd., Samrongtai Phrapradaeng,
- Asiasites Corporation Limited
- Address:560/250 Klaosiam Bld, Dindaeng rd, Dindaeng, 10400, Bangkok Thailand
- Chow Steel Industries Co., Ltd.
- Address:60/52 Phetkasem Rd.
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