Posachedwapa, uthenga wabwino unabwera kuchokera ku China Railway No. 10 Bureau Material Trading Company kuti njira yoyamba yodzipangira yokha ya China Railway yopangira njanji zothamanga kwambiri idakhazikitsidwa ku Jinan.Pambuyo poyesa, makulidwe azinthu, mawonekedwe ake, zida zamakina komanso makulidwe oletsa dzimbiri achitetezo chothamanga kwambiri chopangidwa ndi mzere wopanga izi zonse zimakwaniritsa zofunikira zamtundu wadziko.

Zikunenedwa kuti mzere wopangayo wayamba kugwira ntchito bwino pakatha chaka chimodzi pambuyo poyang'anira koyambirira, kuvomerezedwa kwa polojekiti, kuwunikiranso ziyeneretso, kugula zida, msonkhano wodziyimira pawokha, kukonza zida, ndi maphunziro ogwirira ntchito.Itha kupanga ma guardrails othamanga kwambiri, mizati, anti-block block, yokhala ndi mphamvu yopangira tsiku ndi tsiku mpaka matani 80, yomwe ndi muyeso wofunikira ku China Railway No. ndi kukulitsa chain chain.Ntchitoyi ikafika pakutha kupanga, ikwaniritsanso zosowa zama projekiti osiyanasiyana othamanga kwambiri kuti agule zinthu zothamanga kwambiri za guardrail.