Tsim nyob rau xyoo 1999, Qisheng tam sim no muaj ntau tshaj 200 tus neeg ua haujlwm thiab ua ntau lawm ntawm cov khoom lag luam ntau lawm, sim khoom thiab khoom siv kuaj ntsuas. Peb cov khoom tseem ceeb suav nrog extrusion roj hmab hose, pwm roj hmab hose, silicone hose, fluorosilicone hose thiab lwm yam khoom lag luam, dav siv rau hauv cov liaj teb ntawm cov tsheb thauj khoom, tsheb npav, cov tsheb thauj neeg, tsheb engineering, tsheb tub rog, tsheb tub rog thiab lwm yam.