E thehiloe ka 1999, Qisheng joale e na le mare a fetang 200 le letoto la lihlahisoa tse tsoetseng pele tsa tlhahiso, liteko le lisebelisoa tsa laboratori. Lihlahisoa tsa rona ka sehloohong kenyeletsa extrusion rabara Hose, hlobo rabara Hose, phaephe silicone, fluorosilicone Hose le lihlahisoa tse ling letoto la lihlooho tse, ho pharaletseng sebelisoa masimong a literaka, libese, likoloi mopalami, likoloi boenjiniere, likoloi temo, likoloi sesole jj.