信管 Traditional form: 信管 Pinyin (reading): xìnguǎn Definitions: a fuse (for explosive charge) detonator Characters: 信 - to trust, to believe; letter, sign 管 - tube, pipe, duct; to manage, to control Traditional characters: 信 - to trust, to believe; letter, sign 管 - tube, pipe, duct; to manage, to control