https://www.thomasnet.com/articles/plant-facility-equipment/how-to-make-n95-masks/
• 呵呵,再辩下去就没意思了吧 你从医生说的到亚马逊到N95,你怎么跟三姑娘一样了?:) -加州阳光123- ♀ (286 bytes) () 06/23/2020 postreply 16:30:34