[MW:33416] Ceramic Nozzle 2411, 2413, 2464 meaning and abbreviation need , any one tell the details

Dear Experts, 

Kindly provide  the details about  ceramic Nozzle 2411, 2413, 2464 meaning and abbreviation with full dimensions , how to understand? 

Thanks , I need answes as soon as possible for auditing purpose, so anyone post as possible quickly.

Thanks.

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