A Takefu stainless blade steel; its grade specification and a finished shear's performance are different questions.
VG-10 is a stainless blade steel made by Takefu Special Steel. Takefu’s VG-10 specification lists representative chromium, molybdenum, vanadium and cobalt content and a grade hardness of HRC 60 or above. The company says its composition values are representative standards. They do not certify the heat treatment or hardness of a particular finished scissor.
Takai’s current VG-10 scissor catalogue names both the NAMBA and CORUM FL cutters. It lists NAMBA in 6.0 and 6.5 inches, and CORUM FL in 5.5 and 6.0 inches for left-handed stylists. Both are described with VG-10 material and Hamaguri sharpening, yet their size and hand fit answer different buying needs. Confirm the current specification and seller availability for the exact variant.
The material name does not set a six-to-ten-week service interval or prove that it outlasts a 440C pair. Edge geometry, heat treatment, assembly, hair and cutting method all affect when a scissor needs attention. Takefu describes corrosion resistance for the alloy, but a working shear should still be cleaned and dried after use.
Ask for the model code, hand orientation, edge type and any finished-shear hardness measurement the maker publishes. Then check who can sharpen that edge in your market, at what cost, and under which warranty terms. A similar steel name on another brand’s page is not proof that every model in its range uses VG-10.
For a second material example, see 440C. The cobalt-alloy guide explains why a cobalt label by itself does not describe one grade.