Just arrived today from https://jlcpcb.com/

Glove up and remove shipping to trash outside the interior of the house.

IPA bath and cleaning before bare hand contact.

Only a few minutes for peace of mind.

 

1) You mentioned namelessly the "forbidden words" (peace of mind and cleaning) before smiley. When I made the similar gesture I was banned by AAC and my mail was erased by Mods. Keep in fear
2) How are Your Chineese PCB quality of through-metallized vias?? I am gonna to order at them one my specific job. All the full cycle I can produce myself, but not a through-metallisation. Yet this job is multiGHz system where quality (inductance) of via is absolutely important.

 

1) You mentioned namelessly the "forbidden words" (peace of mind and cleaning) before smiley. When I made the similar gesture I was banned by AAC and my mail was erased by Mods. Keep in fear
2) How are Your Chineese PCB quality of through-metallized vias?? I am gonna to order at them one my specific job. All the full cycle I can produce myself, but not a through-metallisation. Yet this job is multiGHz system where quality (inductance) of via is absolutely important.

1)

2)
Look here.
https://forum.allaboutcircuits.com/threads/male-header-pins-punching-through-pcb.165323/post-1458432

Their boards use lower quality FR4 Tg130 or Tg140 substrate instead of Tg180 FR4 from a place like OSH by default so if you upgrade to a better finish board from a place like JLC, the substrate quality to match OSH is still less unless you pay even more.

Both boards are from JLCPCB using EagleCad 9.5.2 auto-routing.