| The National Asphalt Pavement Association is the only trade association that exclusively represents the interests of the asphalt pavement material producer and paving contractor on the national level with Congress, government agencies, and other national trade and business organizations.
NAPA supports an active research program designed to answer questions about environmental issue |
ฟ้า เทรนนิ่ง อินสติตูท 
ช็อกโก พีโอเอส 
