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At present, China's bearing used in some advanced equipment, whether it is High-speed Rail or the use of aircraft engine, almost all imports!" On the morning of 6 NPC and CPPCC CPPCC group discussions, deputy general manager of Commercial Aircraft Corporation of China, C919 large passenger aircraft chief designer Wu Guanghui members voiced his long-awaited worry worry.
“我們應該從國家層面鼓勵一些企業去做一些高精尖、市場份額較小、利潤也沒有那么大的小元器件，而不是一味地追求大宗品和利潤。”
"We should be from the national level to encourage some companies to do sophisticated, small profits, market share is not so large and small components, rather than simply the pursuit of bulk goods and profits."
“在高速軸承制造上，我國的高精尖產品都不行。”吳光輝坦承，在制造飛機時他們也曾找過國內的廠家，但是質量和可靠性很難滿足航空發動機的高要求。“盡管我們國家鋼鐵產量世界第一，但是一些高精度鋼、特種鋼還得依賴進口。”
"In the high-speed bearing manufacturing, our products are not high." Wu Guanghui admits, in the manufacture of aircraft when they have looked for the domestic manufacturers, but the quality and reliability are difficult to meet the high requirements of aero engine. "Despite our national steel output is the first in the world, but some high precision steel, special steel still rely on imports."
他還以軸承鋼為例——這是一種用來制造滾珠、滾柱和軸承套圈的鋼，具有高而均勻的硬度和耐磨性，以及高的彈性極限。據了解，軸承鋼的制造對其化學成分的均勻性、非金屬夾雜物的含量和分布、碳化物的分布等要求都十分嚴格，是所有鋼鐵生產中要求最嚴格的鋼種之一。“做出來的軸承鋼珠很小，一顆一顆的。”吳光輝用兩只手指比劃出黃豆大小，“這個東西用起來量也不大，人們覺得特意為它開個精煉爐不值，而且從研發到真正生產可能還會需要一個過程，所以很少有人愿意去做這方面的研發。”
He also in bearing steel for example -- this is a method for the manufacture of ball, roller and bearing steel, with high hardness and wear resistance of uniform, and high elastic limit. It is understood, bearing steel, the uniformity of the chemical components of the content and distribution of carbide, non metallic inclusions distribution requirements are very strict, is one of the most stringent requirements of all kinds of steel in steel production. "Bearing ball made out of very small, one by one." Wu Guanghui with both his fingers a bean size, "this thing together with the amount is not large, people feel specially for a refining furnace is not worth, but also from R & D to the real production may also need a process, so very few people are willing to do research and development in this area."