GRAND D.K. CO., LTD.
1/17 Moo 2, Rama 2 Road, Thasai, Muong Samutsakhon74000, Thailand.
Tel. (6634) 490079-80, 490179-181 Fax. (6634)490081,410675 
Email: grand@loxinfo.co.th
www.packedvalve.com, www.servicevalve.com, www.servicevalve.net, www.granddk.co.th