Computer hard disk drive system components. Up to more than 10 kinds of varieties and this part is sliced with extruded shape with nc machine tools and machining center, the individual quality in grams. Photocopy equipment drum precision steel tubes. Car oil pipe and tube heat exchange system, they are mostly with a small continuous extrusion machine production, project production capacity of 50000 tons/year impossible. If built such a big factory, factory of the world as long as two or three is enough to meet the needs of auto manufacturing. Ski pole main rod is made of seamless extrusion tube, the top a cone-shaped, transition area of about 150 mm in length, the demand is not big, but very important, don't want this kind of product of the production capacity of 50000 tons/year, too? Auto outer decoration profiles is a kind of very small profiles, note after surface treatment with shiny white, set in the car on both sides of the upper, in sharp contrast with black body, have very strong adornment sex, obviously, this section should be made up of small factory professional production, one extrusion machine is enough. Bicycle tubes, rim profile and motorcycle rim profile appropriate medium-sized extrusion by specialized factory to produce. Piece of chip "" should be eliminated coil type still has vitality" access "said" it is forbidden to use the men mill production aluminum processing material ", it is too absolute. Indeed, block type "" mill should be eliminated, but should be phased out by the market.
Coil type "" two-high rolling mill rolling mill is often said that, not only in China, the developing countries, is also and in developed countries, production polishing aluminum belt must also use large diameter two-high rolling mill. By the end of 2006, China two-high strip hot mill production capacity of 600000 tons/year, now not only functioning, and the product quality, economic benefit is good also, why it is strictly prohibited to production of aluminum plate with it? All in all, after more than 50 years of development, China's aluminium industry has obtained great achievement, become a aluminium power, primary aluminum industry has super on the international level, on the level of the whole alumina industry due to the limitation of resource conditions, there is a certain gap with the international advanced level, aluminum processing equipment level has been ranked among the top of the world. Become a net exporter of extrusion materials in China in 2001, 2003, become a net exporter of aluminum foil, aluminum plate into exports in 2007 to balance or have a small amount of net imports. The promulgation of "aluminium industry access conditions on the sound and rapid development of China's aluminium industry will play a positive role, but according to the problems found during the execution constantly amended and perfected.