luv luv piav qhia:

PET kub daim kab xev yog tsuas yog siv rau saum npoo thiab tiv thaiv kev tiv thaiv nyob rau hauv qhov kub thiab txias ib puag ncig, electroplating, electrophoresis, ultra-siab kub baking xim, hmoov txau thiab siv cov chip tivthaiv kawg electrodes, thiab lwm yam .;