Casement Window 4-Bar Friction-Stay Weight, Clear-Egress & Easy-Clean Sizer

Deterministic Glass mass m = A * sum(t_i * 2.5 kg/m2/mm) + EN 13126-6 4-bar slider-link egress clear-aperture kinematics engine (.dxf, .pdf) built for Truth Hardware, Securistyle, Cotswold, Yale — zero-upload ephemeral Wasm RAM execution.

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