1. Quality internal inspection: the introduction of German automatic spectrum detector (value more than half a million) --- precise, accurate and fast! 2. Quality external inspection: SGS environmental protection inspection, provide RoHS inspection report --- third party authoritative inspection! 3. Quality system: Strictly implement the ISO9001: 2000 quality management system and improve the quality management system! 4, special workshop: special lead-free environmental protection production workshop, special machine, special furnace, special production line!