它主要由保险公司(或承保人)、保险代理机构和经纪行组成。
It consists mainly of insurance carriers (or insurers) and insurance agencies and brokerages.
保险单据从其表面上看，必须是由保险公司或承保人或他们的代理人开立及签署的。
Insurance documents must appear on their face to be issued and signed by insurance companies or underwriters or their agents.
代理人或代表的签字必须标明其系代表保险公司或承保人签字。
Any signature by an agent or proxy must indicate whether the agent or proxy has signed for or on behalf of the insurance company or underwriter.
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