Artith Ventilators Ltd., Part. Head office : 55 Moo 9, Ramindra Rd., Kannayao, Kannayao, Bangkok 10230 Thailand Tel. (66)-2510-1339, 2509-3065, 2509-2884 Fax : (66)-2943-1814 E-mail : contact@artith.com Conversion Factors Pulley Size calculation Number of Power Roof Ventilator by Area Calculations Number of Natural Roof Ventilator by Area Calculations Number of Agriculture Fan by Area Calculations   Home | Products | News & Activities | Careers | Reference Projects | FAQ | Engineering Tips   © Copyright 2007 Artith Ventilators Ltd., Part. All right reserved. Design by 1001 Click