hashboard antminer s19 Options
Solder paste column M705, flux, board washing h2o with absolute Liquor; board washing h2o is made use of to clean up the solder residue just after repair; thermal gel (specification: Fujipoly SPG-30B) is used to smear the surface area with the chip right after repair ；ball-planting metal mesh, solder absorption wire, solder ball (the ball diamete