Dongguan Tielangtou Hardware Co, Ltd. ke khoebo e felletseng e hokahanyang R & D, tlhahiso. Lihlahisoa tsa eona li koahela mefuta e mengata, haholo e arotsoe ka mekhahlelo e meraro: Libokela tsa Hardware le tsa Aluminium) le lihlahisoa tsa polasetiki) le lihlahisoa tsa polasetiki) le lihlahisoa tsa polasetiki) le lihlahisoa tsa polasetiki. Lihlahisoa tsa mantlha li kenyelletsa: Tin ea Biscuit, makotikoti a limpho, mabokose a linoko, a ka a fuoa ho latela lits'oants'o kapa tsa sampup. E thehiloe ka 2007, k'hamphani ena e na le lilemo tse fetang 10 tsa boiphihlelo ba Hardware, matla a matla a tekheniki, 'me a na le mokhatlo oa eona o ikemetseng le mokhatlo oa moralo. Kamora lilemo tsa nts'etsopele, hona joale oa ba le basebetsi ba fetang 300 le limese tse fetang 1000, tse ka fanang ka tšebeletso ea polasetiki ho tloha litafoleng tsa polasetiki ho ea ho lihlahisoa tse ngata tsa polasetiki ho isa ho tse kholo tsa polasetiki ho isa ho tse kholo tsa polasetiki ho isa ho tse kholo tsa polase. Fektheri e fumaneha toropong ea Zhongtang toropong ea Dengguan, e haufi le Guangzhou, Shenzhen, Hong Kong le libakeng tse bonolo.