... ,spin,shipping industry,architecture,food industry,household products etc.7.Quality:High,we supply the Mill Certificate,third party ... Steel Bar : Step 1: Mine-to-Mill Step 2: Melting Step 3: Casting Step 4: Rolling / Forging Step 5: Annealing Step 6: Finishing Step 7: Testing / ... damage which might otherwise be caused during storage or transportation.7.The factory photos :8.The Quality Testing : 9. ...