Founded hauv 2008 hauv Qingdao, Suav teb, KSHD yog cov chaw tsim khoom ntawm cov rooj tog zaum sab nraum zoov rau cov chaw pej xeem, cov haujlwm ua lag luam, thiab cov cheeb tsam hauv nroog thoob ntiaj teb.

Peb cov khoom lag luam tseem ceeb suav nrog cov thoob khib nyiab sab nraum zoov, bollards, tsheb kauj vab racks, rooj zaum, rooj noj mov, thiab cov quav ntxhua khaub ncaws - tsim los siv txhua hnub hauv pej xeem thiab siab - thaj chaw tsheb.

① Ua haujlwm tau zoo thiab ua haujlwm tsis siv neeg
② Kev tswj hwm nruj nruj thoob plaws hauv kev tsim khoom
③ Cov khoom ua rau cov qauv zoo thoob ntiaj teb
④ Cov neeg siv khoom hauv 80+ lub teb chaws