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sldprt, stp
stp
stl, stp
3dm, stl, stp, step
stp, step
stp, bip/ksp
stp, igs, bip/ksp
3dm, stp
fbx, stp, bip/ksp
obj, stp
max, obj, fbx, stp, igs, prt
3dm, stp, igs, blend
obj, c4d, 3dm, stp
stp, prt
obj, 3dm, stl, stp, bip/ksp
obj, 3dm, stl, stp, igs, blend
stl, stp, igs