Nyob rau hauv 2024, lub ntiaj teb no thiab Suav steel laj kab kev lag luam muag cov nyiaj tau los txog RMB [nqis ploj] billion thiab RMB [nyiaj ploj] billion feem, thiab lub ntiaj teb no kev ua lag luam yog npaj kom ncav cuag RMB [nyiaj ploj] billion los ntawm 2030. Tuam Tshoj steel laj kab kev lag luam feem ntau yog segmented rau hauv cov ntawv sau thiab portable hom, nrog rau cov ntawv thov suav nrog cov chaw lag luam, chaw nyob thiab chaw nyob. Niaj hnub nimno wrought hlau laj kab ntau lawm tshuab nkag mus rau Tuam Tshoj nyob rau hauv lub xyoo pua 20th. Kev lag luam laj kab hauv Sitou Town, Linqu County, Shandong Province, tau pib los ntawm kev tshawb fawb ntawm "Manyuanchun" cam khwb cia hlau pob tshab laj kab qauv hauv xyoo 1970s, thiab tom qab ntawd maj mam tsim thiab nthuav dav.
Siv Sitou Town ua piv txwv, nws lub laj kab kev lag luam tau tsim ua tiav cov saw hlau ua ke nrog R & D, ntau lawm, thiab muag khoom. Xyoo 2023, lub nroog muaj 183 lub laj kab loj, tsim tau 11.875 lab metres ntawm ntau hom laj kab, nrog rau kev lag luam kev lag luam tawm tus nqi tshaj RMB 3 billion. Cov khoom laj kab raug xa tawm mus rau ntau dua 30 lub teb chaws thiab cheeb tsam, suav nrog Tebchaws Meskas, Nyiv, thiab Australia.
Nrog rau txoj kev loj hlob ntawm kev lag luam, cov ntaub ntawv siv rau cov khoom laj kab tau nthuav dav los ntawm cov tsoos cam khwb cia hlau thiab hlau xws li zinc steel, aluminium, tooj liab, PVC, thiab lwm yam ntaub ntawv. Cov tuam txhab sawv cev xws li Shandong Dican Guardrail Co., Ltd. tau tsim thiab tsim cov khoom xws li Beijing-style guardrails, golden lotus guardrails, thiab Suav tshiab -style guardrails.
