Changsha Friend Experimental Analysis Instrument Co., Ltd, specialized in scientific research, is a professional manufacturer of oil analysis instruments. We provide full set of oil testing instruments and equipments for customers. With thorough market research and in-depth analysis of petroleum instruments, we have a good understanding of customer needs. Our company has successfully developed a series of intellectual instrument independently. Our products are suitable for the use in petroleum, electric power, chemical industry, scientific research, quality control and academic research. To pursue high product quality and facilitate innovation, our company combines the Chinese and Western industrial culture and techniques to uphold the artisan spirit. As the management ideas continue to c..