Posachedwapa, nkhani yabwino inachokera ku China Railway No. 10 Bureau Material Trading Company kuti mzere woyamba wodziyimira pawokha wa China Railway wopanga ma guardrail othamanga kwambiri unayamba kugwira ntchito ku Jinan. Pambuyo poyesa, makulidwe a chinthucho, mawonekedwe ake, mawonekedwe ake, komanso makulidwe a zigawo zotsutsana ndi dzimbiri za guardrail yothamanga kwambiri yopangidwa ndi mzerewu wopanga zonse zikukwaniritsa zofunikira za muyezo wadziko lonse.

Zanenedwa kuti mzere wopanga wayamba kugwira ntchito bwino patatha chaka chimodzi kuchokera pamene polojekitiyi yayamba, kuvomerezedwa, kuwunikanso ziyeneretso zake, kugula zida, kusonkhana paokha, kukonza zolakwika pa zida, ndi kuphunzitsa momwe angagwiritsire ntchito. Imatha kupanga ma guardrails othamanga kwambiri a mafunde atatu, zipilala, block yotsutsana ndi block, yokhala ndi mphamvu yopangira mpaka matani 80 patsiku, zomwe ndi muyeso wofunikira kwa China Railway No. 10 Bureau Materials Trading Company kuti ipange njira yosiyana siyana yogulira zinthu ndikuwonjezera unyolo woperekera zinthu. Ntchitoyi ikafika pa mphamvu yopangira, idzakwaniritsa zosowa za mapulojekiti osiyanasiyana othamanga kwambiri kuti agule zinthu zothamanga kwambiri.