The number is given on the pcb. here the number means how much flux is in the solder wire

[@jlp7289]

Para quem nao sabe 30 % é mais adequado para soldar fios de alta temperatura para um ferro de solda derretelo é de 60 a 80 wt

[@axeus1382]

Идеальный припой 60/40

[@cobracommander2153]

30 is high temperatures solder wire, ,its melting with 60 watt element iron

[@dlggamer7014]

Just use higher temperature it works the same

[@Vrotipaly]

Перегрев дорожки

[@ON-L]

63 best

[@jyrkisohkanen1553]

Perhaps numbers mean scale of tin and lead

[@Goodman._]

What do you mean by 99% flux? 😢

[@Vrotipaly]

Олово

[@momo_ganmy]

I thought it’s a percentage of tin or mercury or something like that

[@DanielBenga-b9r]

Mercur? Hg? Ești nebun? Ai fost la școală😢

[@chumacakata7078]

No flux?

[@МурадСевзиханов]

В составе проволоки уже есть

[@deaftodd]

Tin to lead?

[@josemontero9009]

Si se aplicará más calor a el de 30 también se soldaria

[@kourosh2539]

hi dear friend . what is the name of the music ?

[@billwinter9206]

Silver bearing?

[@kaykenunes2004]

63% the best

[@ebrahimyazdani9747]

63%. Very good ❤

[@user-bl8jc4hr3y]

63 is the best

[@thousandguy]

Oil up

[@ИноятуллоГуломов-ш1е]

Бехтарин

[@saedsad-ce2qj]

كل حاجه ولها نسبتها الخاصه من الصولدر

[@johnkapel2128]

BFD! Who cares? 😮

[@stone7034]

烙铁不够热，鉴定完毕😊

[@Andresramos-kx1oh]

El.de 30 no tiene flux

[@alejandromelo4965]

👍🏼👍🏼👍🏼

[@ВладимирПулин-к5т]

А почему теплоотвод во внимание не берете? Конечно, первым нагрел, вторым расплавил еще подогрел, а третьим так что по маслу😂😂😂
Хотя без платы на данном терморежиме все 3 образца, на жале расплавятся😊

[@krzysztofbaraniow]

I got 145

[@Колобок_Круглобок]

63 - 183°C
99 - 220°C
30 - ?