specilized in Mushroom Push button switch,indicator light for many years CE,CCC,ISO certificate OEM acceptable HB4(XB4) push button switches, HB4-B442Mushroom head Turn to releaseContact type: N/O, N/C, N/O+N/C, N/O+N/OCertificate: CE, CCCHuawu Electric is specialized in manufacturing push button switches series productions. Our company fetch in the technology from Schneidr and Telemnique depend ...