US$ 70.00
gapped and continuous coil rings
Steeply curved convex glass mirror at 50mm diameter and 50mm focal length
reference-grade for bridge work
Mid-size 3 x 1
3A standard rheostat in the high-resistance end of the line
Premium Fold and Fault Geology Teaching Model Material_Stainless Steel gapped and continuous coil ringsHands on fold and fault model with manipulable rock strata, letting students physically form anticlines, synclines, and normal or reverse faults to visualize tectonic deformation.
US$ 70.00
US$ 30.00
US$ 67.50
US$ 79.50