Answer:
The eSSL ET-2011 heavy-duty tripod turnstile is cataloged under HSN code 83437019 for B2B procurement and tax invoicing.
The eSSL ET-2011 (Ref: KTI0201703ET11) tripod turnstile is classified under Harmonized System of Nomenclature (HSN) code 83437019 for commercial purchasing, GST billing, and official supply documentation in India.