{"p":"can-20","op":"mint","tick":"can","amt":"1000","rows":[{"df":"qa","content":[{"q":"How can the way casting be limited?","a":"Examination and approval system: Strengthen the approval management of casting projects, do not approve projects that do not meet industrial  policies and environmental protection requirements, and curb poor casting behaviors from the source."}]}],"pr":"afc250315f9db0af95f48dff9bb44371eac60b164d1540b90b274dd236aa2558"}