Isidingo sesibhidiso lesiShandong Tongda sokuqinisekisa umthwalo wokuhlala kwaye usizo lomphilo olungakuhlonipheka olubekwe ngokulula amaxhobo omkhulu apho amaqhaza wenqanawa kukho ukusizi. Ikhodiwe ngamagama eziphathelwe ezithile zokuqinisekisa isibhidiso esingazenzakalelayo ezifakwe kwindawo yesiPolyurethane, lokhu sikudinga noma siyibuza izicatulo zokusondela kwisezintsha lokusebenza, njengesiASTM E119 noma iEN 13501. Ukuba uzilayiselo, izinto zakuxhobo lokusebenza kwenye indlela yahlala kuzolanda ukusukela komoya kunye nokuhlola ukusuka kwesikhatsi. Lokhu kungena imizuzu emfunyeneyo yokugcina ukuya kumalume abafundisi, futhi kungena ukuproteketa imali yezinto ezindabeni zokusebenza kwegumbi lokusizi. Isidingo sikhethe umthwalo wesikrini ngesiphumo sethenjwa sokushaya phakathi komthwalo wesikhatsi okufaneleyo nokushaya, ukuze sigcine amanye amaxhobo edenza kwiqhopho nezinye izinhlangano ezihlukene nokushaya. Usizo lusaphule kumlingana nemibuzo engaphezolo, njengeminingi, uproseshi yezichemical kunye nokuyenza umoya, apho amaxhobo akusizi akhona, isidingo sesiShandong Tongda sesiPolyurethane sokuhlala kwaye usizo lomphilo olungakuhlonipheka olubekwe ngokulula amaxhobo.