There have been multiple accounts created with the sole purpose of posting advertisement posts or replies containing unsolicited advertising.
Accounts which solely post advertisements, or persistently post them may be terminated.
quartzmin3 , 4 months ago The article is correct. High purity quartz is necessary for semiconductors, not all quartz meets this standard.
The article is correct. High purity quartz is necessary for semiconductors, not all quartz meets this standard.