The Christmas season is an occasion you will certainly wish to spend with your friends and family. It is not even the sharing of gifts that matters, although you cannot discount the wide smiles it brings. It is the presence of people you love while you celebrate the summer season?s highlight, Christmas Eve. You should be prepared with many activities that may continue the fun in the air and steer clear of what every host or hostess fears most, which is boredom. One of the wonderful activities you can do is to get everyone sing in unison each of the Christmas songs they know. According to the travelling expenses data, in mid-december in zhejiang market price of R22 / everything/R410a 1.53/2.57/36500 yuan/ton, respectively, from early September at the bottom of the periodic rebounded 20% / 38% / 46% respectively, the downstream demand off-season, but the price of raw material hydrofluoric acid, chloride methane due to higher environmental factors superposition enterprise starts ascending space limited (according to the travelling expenses, effective device industry starts. Seventy percent), refrigerant price off-season does not light. Moreover, the average price of r22/r22/r134a/R410a has increased by 68%/32%/103%, respectively, from 2016Q4. Compared with the raw material spread, we have been able to calculate the company's overall profitability. The independent of interest is of positive significance to show the active role of the fund users in the reproduction process. Edwards and bell's point of view