Challenge Systems, Inc.
Work Unit 6L, 6th Floor, Vernida 1 Condominium Building, 120 Amorsolo Street, Legaspi Village, Makati City, Metro Manila, Philippines Makati City Metro Manila
Work Phone: +63 2 892 3773 and 79, +63 2 812 8982
Website: http://www.challenge.com.ph
Categories:
- Engineering Design