Screw threads for spectacle frames-Specification for screw threads of Unified form for spectacle frames including screwing taps and screw gauges
Document status: Active
Playground equipment for parks. Pendulum see-saws
Document status: Active
Playground equipment for parks. Rotating equipment
Document status: Active
Comparison of british and overseas standards for steel. Chemical composition of wrought carbon steels: British standard S.A.E and DIN
Document status: Active
Comparison of british and overseas standards for steel. Chemical composition of wrought carbon steels: British standard (S.A.E and AISI) and German (DIN and Werkstoff)
Document status: Active
