SYMPLEX BUSINESS CO.,LTD.
9 Soi Pongsawadi Sanam Bin Nam Rd.  Tha Sai Muang Nontaburi
Nonthaburi     11000
Tel :  02-9501799 Fax :  02-5883230 Cell. :  081-834-5019, 0847017887
E-mail : suthep@symplex.co.th
Website : WWW.Siaminspector.com
Website : WWW.symplex.co.th