Fektheri ea Motlakase ea Lithapo ea Yueqing Tongda (Ntlo-kholo) e thehiloe ka 1990. Kgwebo ea rona e ka sehloohong e shebane le nts'etsopele le tlhahiso ea li-switch tsa taolo ea indasteri, ho kenyeletsoa Li-Micro Switches, Li-Rocker Switches, Li-switch tse sa Keneng Metsing, Li-switch tsa Push-Button, Li-switch tsa Tactile, le Li-switch tse Ikhethileng. Lihlahisoa tsa rona li fetile liteko tsa setifikeiti sa polokeho tse kang UL, C-UL, ENEC, VDE, KC, CE, CB, TUV, CQC, le litifikeiti tse ling tsa lehae le tsa machabeng. Hona joale, re na le litokelo tsa molao tse 6 tsa naha tsa boqapi, litokelo tsa molao tsa mohlala oa utility tse 48, le litokelo tsa molao tsa moralo tse 12.