Cov phaj nruab nrab thiab hnyav yog siv rau hauv kev tsim kho engineering, tshuab tsim, ntim khoom, nkoj tsim, choj tsim, thiab lwm yam. Nws tseem tuaj yeem siv los tsim ntau lub thawv, lub plhaub rauv, cov phaj rauv, txuas hniav thiab lub tsheb zoo li qub steel daim hlau, tsis tshua muaj alloy. steel daim hlau, shipbuilding daim hlau, boiler daim hlau, siab nkoj daim hlau, checker daim hlau, tsheb nqaj hlau phaj, tej qhov chaw ntawm tsheb laij teb thiab vuam. Cheebtsam, thiab lwm yam. Daim ntawv thov ntawm nruab nrab thiab hnyav phaj: dav siv los tsim ntau lub thawv, lub tshuab hluav taws xob, lub tshuab hluav taws xob, lub tshuab hluav taws xob, txuas hniav thiab tsheb zoo li qub steel daim hlau, cov hlau tsis tshua muaj hlau phaj, choj steel phaj, dav hlau daim hlau, boiler steel phaj, siab nkoj steel daim hlau, qauv steel daim hlau, Kev siv tshwj xeeb ntawm tsheb ncej steel daim hlau, qee qhov ntawm cov tsheb laij teb thiab cov khoom siv welded.