{"p":"can-20","op":"mint","tick":"can","amt":"1000","rows":[{"df":"qa","content":[{"q":"How can the way casting be limited?","a":"Legal and regulatory constraints: Regulate the casting industry through national laws and regulations, clarify the production standards and  requirements of casting enterprises, and punish enterprises that violate the laws and regulations."}]}],"pr":"9f153d5104a91f87dba304708c65fb65dc2cdcb8642ccd9968603902c4d3001b"}