1970QJ 1960.34A-2007 Multifunctional combined stamping formwork elements Part 34: U-shaped base parts
1986QJ 955.1-1985 Multifunctional combined stamping formwork element strip base
QJ 955.1-1985 Multifunctional combined stamping formwork element strip base was changed to QJ 1960.34A-2007 Multifunctional combined stamping formwork elements Part 34: U-shaped base parts.