What are these Cheongchuk spring

I came across this group buy for springs that expired. 
The springs are 45g, 50g and 62g. Can anyone tell me which springs are for which stems?

How can I buy one?

이전 댓글 3
Namun/Fanny 2011-11-29 19:24
Cheongchuk means Cherry MX blue switch. 45g can be used only in linear mx switch and 50g, 62g can be used in any mx switch. As you know, these spring group buy are expired. For now, I think you can buy them only from "Sell and Buy" bulletin board.(You can see it in the left menu) Write to the bulletin board about what you want to buy, then someone would contact to you if he or she have the surplus spring. Or contact the spring group buy manager by private message. His id is located at the top of the spring(5S) group buy article. click on his id and click "Send Message". 
kaiserreich 2011-11-29 23:09
Thanks very much
kaiserreich 2011-12-04 02:02
It seems that for the 5S group buy that closed previously, the only available versions are 45g, 55g, 62g, but in the picture there are 50g springs.These don't sell anymore?
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