On September 21, the Ministry of Commerce issued an announcement and decided to start anti-dumping investigation of imported pyridine originating in Japan and India. On August 2 of this year, the Ministry of Commerce received applications from Anhui Guoxing Biochemical Co., Ltd., Nanjing Red Sun Biochemical Co., Ltd., Weifang Greenba Chemical Co., Ltd. and Nantong Rayleigh Chemical Co., Ltd. on behalf of the domestic pyridine industry. The applicant requested an anti-dumping investigation of imported pyridine originating in India and Japan. According to the Regulations of the People's Republic of China on Anti-dumping, the Ministry of Commerce will investigate the dumping and dumping margins of the above-mentioned imported products originating in Japan and India, as well as the extent of damage and damage to the same kind of Chinese products, from the date of Make a ruling. The dumping investigation period determined in this investigation was from July 1, 2011 to June 30, 2012. The industrial damage investigation period was from January 1, 2008 to June 30, 2012. The survey will begin on September 21st and should normally be completed by September 21, 2013. In special circumstances, it may be extended to March 21, 2014. Pyridine is a basic raw material containing pyridine ring pesticides and pharmaceutical intermediates. It is also an important raw material for daily-use chemicals, feed, food additives, and radial tire industry. Excavator Cylinder Piston Seals
Precautions for the installation of hydraulic cylinder piston seals in excavators
Hydraulic cylinder piston seals, hydraulic cylinder seal, boom seal Safe Seal Technology Co., Ltd. , https://www.jssafeseal.com
1. The sealing of the oil cylinder piston should use products of reliable quality to ensure good sealing performance.
2.Before installing the oil cylinder piston seal, the seal and sealing groove should be cleaned to ensure that the sealing surface is free of impurities.
3. When installing the seal, the correct installation sequence and direction should be carried out according to the drawing requirements to ensure the correct installation of the seal.
4.When installing the seal, special tools should be used to avoid using sharp tools and hard objects to damage the seal.
5. When installing the seal, attention should be paid to whether the seal groove is damaged or worn. If so, it should be replaced or repaired in a timely manner.
6. When installing the seal, an appropriate amount of lubricating oil should be applied to avoid friction damage to the seal during installation.
7.When installing the seal, it should be ensured that the compression of the sealing ring meets the requirements to avoid excessive or insufficient compression leading to seal failure.
8.After installing the seal, a sealing test should be conducted to ensure that the sealing performance meets the requirements.