sandwich panel Can Be Fun For Anyone
Classification of these locations are presented in many rules but the base of all other guidelines is ISO i.e. ISO-14644-one. A correct classification is offered in ISO Together with the system which gives the focus of airborne non-viable particles in almost any class.เพื่à¸à¸žà¸´à¸ˆà¸²à¸£à¸“าสถานที่ ให้เหมาà