DIN EN 26157-3:1991-12 Fasteners; surface discontinuities; bolts, screws and studs subject to special requirements (ISO 6157-3:1988); german version EN 26157-3:1991
1991DIN EN 26157-3:1991-12 Fasteners; surface discontinuities; bolts, screws and studs subject to special requirements (ISO 6157-3:1988); german version EN 26157-3:1991
1991DIN EN 26157-3:1991 Fasteners; surface discontinuities; bolts, screws and studs subject to special requirements (ISO 6157-3:1988); german version EN 26157-3:1991