081215070500 vyntech@yahoo.com

Air Pollution Control

Description Every day we breathe free air around us as free or free of charge. But some regions, especially in Indonesia, the air are much polluted. Sources of defilement can be an activity that is natural and anthropogenic activities. Examples of natural resources is...
Silahkan WA kami..
Hello.. saya sari
ada yang bisa kami bantu?