OPERON -165°C Cryogenic Test Chamber - CTC-165 Cryogenic Test Chamber 
 of OPERON is the cryogenic cooling device to test the strength of materials for 
 an LNG carrier between -165°C to -10°C. It is a creative product of OPERON.
 Previously in the most advanced countries, cryogenic test is available with 
 continuous injection of liquid nitrogen connected to the tank lorry, 
 but electronic concentrator operating method of OPERON Co., Ltd 
 cryogenic cooling technology realizes -165°C, so the 
 sample test can be performed with below half of cost 
 comparing to the method using liquid nitrogen for a 
 long time. Also, if the user wants rapid cooling, using 
 it with liquid nitrogen method satisfies both quick 
 freezing and low cost.
 It is also used to test tensile strength or degree of 
 fatigue of metals. There are two types of chambers, 
 combination type with flexible fitting which makes 
 it move up & down and back & forth and chest type 
 all-in-one freezer chamber.

Click for more info : http://www.operon.co.kr/eng/page/product03.html