cost to profit ratio The difference between the income and the total income has been realized According to the engine displacement, divided into a miniature (1 liter), light level sedan (1-1.6 liters), intermediate (1.6-2.5 litres), senior sedan (2.5 4 liters), limousine (4 liters). 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. In the near future, the car owner who has changed the gasoline pump or unloaded the gas pump will not panic if there is a gasoline smell in the car. It is likely that the residue has not been cleaned up after the removal of the vehicle. The probability of such a situation is small, and the general replacement cycle of the gasoline pump is 100 thousand kilometers. But the gasoline filter is connected with the gasoline pump. The replacement cycle is shorter and the gasoline pump needs to be removed when replacing. In this case, simply check the installation of the gasoline pump and clean the surrounding area. The five-year average interest rate is also gradually rising, now more than 2 percentage points for the first time since July 2016. When IHS Markit produced a euro-area purchasing managers index of 58, more than most economists had forecast, it was at its highest level since February 2011. Any score above 50 indicates growth.