Since the end of 2009, due to the continuous increase in the price of rubber raw materials, the profit of tire sales has shrunk dramatically, and tire manufacturers have had to increase sales prices. On June 30, 2010, the reporter learned from a number of tire stores in Chongqing that, following the rise in prices of some tire brands in April, the price of tires was once again adjusted online, with an average increase of around 5%. “After May Day, we received a notice from the manufacturer and we raised the price of tires,†said Wang Heng, head of Chongqing Pirelli tire distributor. The reporter inquired on the website of the Shanghai Futures Exchange that the highest price of natural rubber in June was 25,290 yuan per ton, which was nearly 60% higher than the highest price of 15,840 yuan per ton in the same period of last year. Many brand dealers such as Michelin and Goodyear said that since mid-May, tire prices have risen, and this year has been raised three times. Boss Wang of a tire store in Yuzhong District told reporters that after the increase in tire prices, the store’s sales volume has fallen by more than half. “Simply put, at this time in previous years, at least 200 tires could be sold in one month, but now 100 Not to." Special Oil,Gear Oil,Natural Gas Engine Oil,Fully Synthetic Engine Oil PUYANG XINYE SPECIAL LUBRICATING OIL AND GREASE CO.,LTD , https://www.specialgrease.com