His ability is unique and not something that others can possess just by wanting it.
Explaining it wouldn't make the other person believe, and he didn't have any need to explain.
The most valuable parts of a demonic beast's corpse are its demonic core and heartblood. However, some other parts of the demonic beast also hold significant value, such as the scales on this snake demon.
Unfortunately, they currently lack the means to utilize these scales, as it requires the skills of a master craftsman. Su Yang's sword intent, while versatile, was currently at too low a level to enable him to engage in artifact crafting.
When you can only use the power of three-level sword intent, achieving dimensional refining is clearly not possible.
Within Liu Village, there were no master craftsmen. The existence of Liu Daifu, who could refine elixirs, was already extremely rare and abnormal.