The sieve tray is nearly the lowest one in the modes in Chinese operatic music tower, its structure is simple, It is easy to operate, press and reduce, the flux is large, Efficiency is high, the design method is ripe, and it is easy to install and overhaul. Especially the lead and sift board, press and lower smaller, efficiency is higher, There are certain elastic ranges, it is a board type used extensively in recent years . Use the occasion and use giving an example ; ━Widely used in the devices, such as rectification, extracting, medicine, petroleum, chemical industry, oil refining,etc. ━One ring own alcohol rectifying tower of phenol ━Urea high pressure separates the tower ━CO2Take off and suck the tower.

Specification Diameter：　Φ300-Φ400 Board type: Sift the hole board , lead and sift hole board, MD- to lower more liquid and is in charge of sifting the board . Material 1Crl18Ni9Ti stainless steel, A3 carbon steel,etc. Other special materials can be had made to order according to user's request such as 304L or 316L and special specification.

Bubble-cap Tray 　　It early board type that use on a large scale at industry most one of, have ripe design method and operate it experience. Gas keep in touch well, operate elastic heavy range , and is able to bear the greasy dirt, difficult to stop up . Use the occasion and use giving an example : ━Suitable for reflecting rectification, some organic products are separated ━A toluene of benzene is separated ━The base chlorine benzene of nitre is separated ━The ethylene is oxidized and absorbed

Specification Diameter：Φ300—Φ400 Board type: Steep and put on board, pieces of type steep and put on board, S type steep and put on board, flat to steeped and puts on the board . Flowing type: Flowing type, double-current type, U type flowing type, ladder type only Material 1Crl18Ni9Ti stainless steel, A3 carbon steel,etc.. The special material can be selected to order according to user's request such as 304L or 316L and special specification.