+/- 2 mm.
IFC Systems Co., Ltd. 30/53 Soi Fachouse, Moo 7, Lamlukka Road Soi 51, Ladsawai, Lamlukka, Pathumtani 12150 Tel. 0 2998 7190-2 Fax. 0 2998 7195 Email : contact@ifcsystems.co.th Website : www.ifcsystems.co.th