Isikhombisa sesiShandong Tongda sithetha ukuthi kuyahlukile futhi kuhluke ukusebenzela ngokuphihlisayo nokusetyenziswa kakhulu lokusekwa imibhemi eminingi. Ukusebenza ngenqanawe yokugcwalisa eluhlukene, leshayela lisebenza ukubonisa nokulawula amaparti kususobala ngeesayizi, isigabheni noma umoya wabo. Isikhombiso, esingazwe ngamagugu omphakathi we-polyurethane, sihlukile ukungavuli okanye ukusetyenziswa kakhulu lomapharti. I-frame yesikhombisa, esikhelekileyo ngesiqephu sokugcwaliswa sokuhlukene, sikuhlela ukusebenza ngokuphakeme kunye nokusebenzela ngokuphakeme. Ngenani lokugcwaliswa, phakathi komfihlo kunye namafomu, akhiwo-ajabulo ukusetshenziswa ukuthi akwazi ukuba hloye lokusekwa lokuncane kunye neziqhaza ezidingekileyo zezimbini, zamatyolo, izinsuku, amangcongco kunye nezinyathelo. Ukuphakeme kwakho kunye nokusebenza kakhulu kwisekhombiso sikufanelela ukubanzi kumiphakathi njenge-mining, agriculture kunye nenkcubeko. Faka imboniso noma sekwenze ukuthi uzoba ngalo moya waleshayela wakho wesikhombiso somphakathi.