久久天天躁夜夜躁狠狠躁2020,天天操天天摸天天曰天天干天天弄天天干,欧美高清milf在线播放,91国内精品在线,杨幂2015不雅视频,张馨予激情视频,潜水美女视频

Random Packings

Ceramic tower packings have great advantage of acid-& heat- resistance. It can withstand almost all kinds of acid up to 1000C, except HF acid, and be widely used in the tower of dry, absorbing, cooling, washing and recovery etc. in chemical, petrochemical and metallurgical industry.
Plastic Random Packing include pall ring, intalox saddles, super intalox, cascade ring, HQM ring, teller rosette ring, hollow ball, polyhedral ball, cage ball and covering ball.
Metallic random packings include Conjugated rings, VSP ring, Intalox saddles, Twin curved saddles, HQM flat ring, Cascade ring and Pall ring.