{"p":"can-20","op":"mint","tick":"can","amt":"1000","rows":[{"df":"qa","content":[{"q":"How can the way casting be limited?","a":"Industry  standardization: Formulate and improve relevant standards in the casting industry, including product quality, environmental protection requirements, safety in production, and guide enterprises to produce according to standards."}]}],"pr":"9d3e3e9915de44168f814848b0115324b3f22674207848796ff8c919e0a73556"}