请问:EC declaration of conformity 是什么证书?

请问:EC declaration of conformity 是什么证书? 客人要求我们出具EC- DECLARATION OF CONFORMITY certificate of conformity和EC declatation of conformity是什么 客户出具了EC declaration of conformity,是不是表明这个产品是得到CE认证的, Declaration of Identity是什么 Certificate of Conformity是什么认证 certificate of conformity是什么意思? certificate of conformity是什么意思 “certificate of conformity”是什么意思? certificate of conformity declaration of neutrality是什么意思 CE declaration of compliance