High frequency welding hollow aluminum spacer has five core advantages

(1) No air oxidation, corrosion resistance, even if long-term precipitation and its wet and cold areas, can also be used for a long time
Surface color is good, high gloss, and no bumps and bruises
③ Double outlet holes, orderly, excellent parallelism
Can be carried out with a variety of sealant high-quality fusion, and for carbon molecular sieve, moisture-proof agent, no harm, can ensure the vitality of moisture-proof agent
⑤ The compressive strength is higher, the ductility is also greatly improved, and the relative reliability is better