... Simple maintance 4manhole Welded ball mill shell consists of an all-welded mill shell and a T-sectional welded-up ... of which is welded onto the ends of the shell.Process:Place a pattern in sand to create a ... test and so on.Surface treatment and other requirement from customer.Standard&certificate:ASTM,BS,NF,DIN,JIS and ... CCS,DNV,NK,RINA,KR and so on.Weight:from 3 tons to 120 tons per pieceApplication: The ...