How to choose a good quality, patient with high air box, please refer to the following table: comparison project high-quality products inferior products wood wood thickness of 12mm, five national standard plywood, damp deformation, good strength, impact resistance. 9mm thickness only about 7mm, non-GB three boards, most of poplar wood, rot after damp deformation, strength is not good. Resistant to impact all aluminum aluminum oxide, aluminum edging width 35mm, thickness 2mm not all about aluminum oxide, aluminum edging width 30mm, thickness of about 1mm cushioning material all with new materials production of new cotton, good elasticity, shock effect reaches II level, multi-use EVA cotton. Sponge full with the old material production EVA, elastic good, more choice and EPE high foam. Hardware-plated hardware of all branded products, good work intensity, pumping hands with a 10mm diameter, multi-branded hardware plating process in the workshop, work intensity difference, pumping hands with 8MM products, wheels with 3.5-inch or 4-inch dual-bearing poly Grease wheel military aluminum boxes, load up to 150KG / or selection of strengthening performance load reach 200KG / or more wheel plate thickness of 4mm thick. A 3-inch small single bearing wheel or the use of PVC plate thickness of 2mm, load no more than 80KG / just below the bottom multi-use 15mm or 18mm more use of the entire board 9mm or 12mm plate rivet distance is usually about 200 at 100mm above the platen Process panels and boards generally use white latex adhesive, pressure 12-24 hours Liaoning military aluminum boxes, at a temperature of 100 degrees is not sparkling Jiangsu military aluminum boxes, not wrinkled panels and boards generally with yellow glue, pressure Hopewell is not a pressure, are likely to bubble under strong light irradiation, wrinkled regular service factory service for lifelong maintenance free warranty for one year or more family cottage without service, a quality problem can not be solved other work precision, good hand Shaanxi military aluminum boxes, assembly line production, tightness, precision products can be used more than five years (touring nature of the use) rough, hand-poor, poor sealing cottage, accuracy is poor, product Up to a year (touring of use) Guangxi: Nanning, Guilin, Liuzhou, Wuzhou, Guigang, Yulin, Qinzhou, Beihai, Fangchenggang, Chongzuo, Baise, Hechi, guests, Hezhou. Inner Mongolia: Hohhot, Baotou, Wuhai, Chifeng, Tongliao, Xinjiang Autonomous Region: Urumqi, Karamay, Shihezi, Kashi, Aksu, Liaoning Province: Shenyang, Dalian, Chaoyang, Fuxin, Tieling, Fushun, Benxi, Liaoyang, Anshan, Dandong, Yingkou Panjin, Jinzhou, Huludao. Shandong Province: Jinan, Qingdao, Liaocheng, Dezhou, Dongying, Zibo, Weifang, Yantai, Weihai, Rizhao, Linyi, Zaozhuang, Jining, Tai'an, Laiwu, Binzhou, Heze. Before welding preparation by chemical or mechanical methods, strict clean the surface oxide film on both sides of the weld groove. Mechanical cleaning can be pneumatic or electric cutter, but also the use of scraper, rasp and other tools, the thin oxide film may also be of 0.25mm copper wire brush grinding remove oxide film. Cleared immediately after welding, if you place more than 4h, should be re-cleaned. Shanghai military aluminum boxes, Shin Hae packaging (certified), military aluminum boxes provided by Xiongxianshenhai packaging color Limited. Xiongxianshenhai packaging color Limited (www.shenhai6688.com) (www.shenhai6688.com) Hebei Baoding, plastic bags leaders, over the years, the company is implementing the scientific management, innovation and development, the principle of honesty and trustworthiness, the maximum to meet customer needs. Shin Hae leader in packaging with the staff warmly welcome all inquiries negotiations to create application-Packing better future.