1970QJ 1960.38A-2007 Multipurpose combined stamping formwork elements - Part 38: Adjustable wedge pins
1986QJ 960.4-1985 Multi-functional combined stamping formwork element wedge pin
QJ 960.4-1985 Multi-functional combined stamping formwork element wedge pin was changed to QJ 1960.38A-2007 Multipurpose combined stamping formwork elements - Part 38: Adjustable wedge pins.