This standard specifies the technical requirements, test methods and inspection rules, marking, packaging, transportation and storage of screws and barrels for plastic machinery. This standard applies to screws and barrels used in plastic machinery such as single-screw plastic extruders and plastic injection molding machines.
JB/T 8538-1997 history
2011JB/T 8538-2011 Screw and barrel for plastics machinery
1997JB/T 8538-1997 Screws and barrels for plastic machinery