WHAT DOES ISO WALL MEAN?

3. The operators as well as other supporting workers ought to put on the masking dresses like mask and gloves etcetera. to attenuate the dispersion of particles and microbes in the region.- อยากให้เย็นแค่ไหนก็ทำได้ ลองดูคลิปด้านล่างนี้ครับป้องก