CONTACT US CONTACT US NKW Welder & Construction Co.,Ltd. Address : 200/12 M.6 Samnukton, Banchang, Rayong Thailand 21130 Phone : (+66) 38 604 383 Fax : (+66) 38 604 353 Email : nikhom.k@nkw.co.th Factory Work Shop#1 9/28 M.3 Samnukton, Banchang, Rayong, Thailand, 21130. Factory Work Shop#2 200/12 M.6 Samnukton, Banchang, Rayong, Thailand, 21130.