Huawu Electric is specialized in manufacturing push button switches and indicators series products. We fetch in the technology from Schneider and Telemnique then integrate with our advanced manufactured experience, and now we can make all series push button switches. All the products had passed CE and CCWith all customers?supports, we fetched in international advance technology and developed HB4(XB4) and HB5(XB5) series push button switches and indicators. We sincerely hope we can have a long term good relationship with you.C approval.