1, ××× series aluminum alloy: 3003 on behalf of aluminum, 3004 aluminum, 3A21 aluminum based. 3 ××× series aluminum is made of manganese as the main ingredient wall panels, content between 1.0-1.5%. Is a series of anti-rust function better. Routine use in air conditioners, refrigerators, cars and other wet environments, the price is higher than 1 ××× series, is a more commonly used alloy series. 2, ××× series aluminum alloy: representative of 4A01. Aluminum manufacturers tell us that belong to a series of high silicon content. Usually silicon content of 4.5-6.0%. Are used in construction materials, machinery parts, forging materials, welding materials; low melting point, good corrosion resistance. The first is to tell you that aluminum wholesale indirect water cooling: that in the back or a local metal type, cast-water jacket wall board factory in Jinan, the cooling effect is better than air-cooled wall panels manufacturer Jinan for In casting copper or malleable iron pieces were. But thin-walled cast gray iron castings or ductile iron castings, intense cooling Jinan wall panels Which will increase the casting defects. The second is the direct water cooling: This time we want to believe in wholesale aluminum metal type on the back or the local water system sets directly in the water jacket cooling water through, mainly used for casting steel or other alloy castings, molds request strongly cooling portion. But because of its high cost, so only suitable for mass production. Parts. Which Jinan curtain wall panels, aluminum rolls, wall panels provided by Jinan Heshun Aluminium Limited. Jinan Heshun Aluminum Co. (www.jnhsly.com) Shandong Jinan, aluminum products leader, over the years, the company is implementing the scientific management, innovation and development, the principle of honesty and trustworthiness, and satisfy customer needs. Aluminum leadership in cis with the staff warmly welcome all inquiries negotiations to create a better future for aluminum rolls.