将铝材在电镀槽内,电化学处理,表面氧化,氧化铝膜是多孔的,吸附染料后就是彩色的了。对于铝材,一般不喷涂涂料。the next generation keyboard, future keyboard!challenge and subverting the global computer keyboard, keyboard music instruments in 25 years ago, the pioneer of the chinese people firstly entered th** area. who sent it into the modern house of ceo of microsoft?to challenge at&t of the united states by improving communication deficienciesimproving communication deficiencies, chinese people challenge at&t of the united states. 20210311