▲ Ua ntej, txiav cov hlau hlau raws li qhov loj me (cov hlau rail yog hnav-tiv taus thiab muaj zog txaus thiab tawv);
▲ Cov hlau rail yog rhuab ntawm qhov kub kub hauv qhov cub;
▲ Cov hlau khiav liab yog muab tso rau ntawm cov xovxwm forging thiab rov ua dua. Tom qab ntawd muab tso rau hauv lub tshuab dov, thiab deform tom qab dov ntau zaus;
▲ Thaum tshav kub kub ntawm cov hlau railed nyob rau hauv lub cub tawg dua, muab cov hlau hlau liab rau ntawm lub forging xovxwm rau forging, thiab ces muab tso rau hauv lub tshuab dov, thiab yob nws ob peb zaug los ua ib lub phaj steel ntev; (nco ntsoov tias nws yuav siv sijhawm ob zaug thaum lub sijhawm ua kom sov forging)
▲ Tom qab rov ua dua, nws dhau los ua lub phaj steel ntev, thiab cov phaj hlau tau muab tso rau kom zoo tom qab txias;
▲ Muab lub phaj steel rau hauv lub tshuab xuas nrig ntaus thiab xuas nrig ntaus tawm ntawm lub shovel;
▲ Tom qab lub duav yog rhuab ntawm qhov kub, nws muab tso rau hauv lub tshuab rau stamping thiab sib sau;
▲ Tom qab lub duav yog rhuab ntawm qhov kub, nws muab tso rau hauv lub tshuab rau stamping thiab sib sau;
▲ Steel spade nto kho. Cov txheej txheej ntawm cov hlau shovel yog qhov kho kom zoo nkauj ntawm cov khoom kom tiv thaiv xeb;
▲ Cov shovels yog ntim thiab khaws cia. Lub taub hau shovel thiab shovel pas nrig yog ntim thiab khaws cia nyias;
