1970QJ 1960.21A-2007 Multifunctional combined stamping formwork elements - Part 21: Adjustable strippers
1986QJ 958.3-1985 Adjustable unloading plate for multifunctional combined stamping die frame components
QJ 958.3-1985 Adjustable unloading plate for multifunctional combined stamping die frame components was changed to QJ 1960.21A-2007 Multifunctional combined stamping formwork elements - Part 21: Adjustable strippers.