Curtis Industries AWS resolution block Curtis industries| 4078 Curtis Industries AWS resolution block Print Curtis industries| 4078 Curtis Industries AWS resolution block Used for checking resolution capabilities of angle beam transducers. QXX-5018 AWS resolution block, carbon steel 1018, with wood case. QXX-5006A AWS resolution block, 7075-T6 aluminum, with wood case. QXX-5020 AWS resolution block, 304 stainless, with wood case. Request for information