(1) Beryllium tooj liab hlau yog tsuas yog siv rau hlau caij nplooj ntoos hlav, twist-pin, fuzz khawm, caij nplooj ntoos hlav ntiv tes, thiab lwm yam high-end connector khoom.
(2) C19610 feem ntau yog siv hauv cov khoom sib txuas.
(3) Copper ferro alloy feem ntau yog siv hauv RF shielding net, connectors, pwm thiab lwm yam.