At present, the state has not formulated relevant standards (including origin, color, etc.). ) Bianshi industry, which is the root cause of Bianshi market disorder and the proliferation of counterfeit goods. Bian Shi is just a folk name. At present, it is difficult to determine which pumice comes from Sibin according to the name of "Bian Shi". There are too many places to sell Bian Shi, from the internet, to pharmacies, to medical equipment stores near hospitals, Bian Shi belts, Bian Shi hats, Bian Shi rings, Bian Shi scraping boards ... there are many kinds of certificates ... and the authenticity is generally unreliable.