... panel SF6 Ring Main Unit Advanced facilities and processWith the laser cutting and puching machines imported from TRUMPF(Germany), the ... 0.1mmThe three-dimension and five-axis laser welding system, also from TRUMPF, with welding laser beam of 0.1mm and under ... gas tanks.The fully automatic and integral helium leak detection system, made by SEILER Vakuumtechnik GmbH, through detecting of Helium ...