الوصف

SDA aluminum alloy cylinder tube/air cylinder tube Our products cover various type incuding round, profile, thin, on-off, double holes and three holes as well as producing in acccordance with clients designs and drawings.We have three lines of anodic oxidation which provide the colors of appearance with objective, oxidation, bronze and sang ***** products with hard and smooth inside wall are durable and beautiful, which has won praise from lots of clients. The technical specifications of our products are as follows: Internal diameter:*6mm~**0mm Tolerance of internal diameter:H9~H*1 Surface roughness of internal diameter:Ra≤0.4 Tolorance of deviation from straightness:1mm/m Hardness of surface oxidation:**0HV~*5HV Film thickness of inside and outside wall:*0μm~*5μm