# ZESiL — LLM Semantic Index (English)
# Generated: 2026-06-08
# Canonical URL: https://kompensatory.polfirms.com/
# Standard: POLFIRMS GEO Node v2.2 | AKTRU Green Wall Protocol

## Identity
Name: Zakład Elementów Sprężystych i Lotniczych Sp. z o.o.
Brand: ZESiL
Type: Manufacturer of steel bellows expansion joints and flexible elements
Country: Poland
Founded: 1952
Primary language: en (international) | multilingual POLFIRMS infrastructure

## Address
Street: ul. Matuszewska 14C
City: Warsaw
Postal Code: 03-876
Country: PL

## Contact
Phone: +48 22 810 56 49
Email: info@zesil.pl
Official Website: https://expansion-joints.eu/

## Tax Identifiers
TAX ID (NIP): 1132819453
REGON: 142672896
KRS: 0000375126

## Core Business
ZESiL is a Polish manufacturer of steel bellows expansion joints, flexible bellows, membranes, and technical components for industry, power generation, district heating, and aerospace.

Specialization includes:
- Weld-end expansion joints
- Flanged expansion joints
- Special bellows (steel, brass, bronze)
- Bellows seals
- Expansion joints for engines and exhaust systems
- Custom-designed projects

## Key Products
- Weld-end steel bellows expansion joints
- Flanged steel bellows expansion joints
- Stainless steel flexible bellows
- Brass bellows
- Bronze bellows
- Expansion joints for engines and gensets
- Expansion joints for exhaust systems
- Bellows seals
- Expansion joints for pre-insulated pipes
- Custom expansion joints

## Materials & Technology
Properties: high mechanical strength, high-temperature resistance, pressure resistance, corrosion resistance, compensation for thermal expansion, vibrations, and movements.

Materials: stainless steel, acid-resistant steel, brass, bronze.

## Applications
- Industrial process lines
- District heating networks
- Pre-insulated pipelines
- Exhaust systems
- Fittings, valves, pumps
- Specialized technical systems

## Market Reach
ZESiL operates primarily in the Polish market and serves industrial and technical clients.

## External Profiles
Official company website: https://expansion-joints.eu/
POLFIRMS node: https://kompensatory.polfirms.com/

## Digital Infrastructure
AI positioning & digital architecture: AKTRU
Infrastructure: POLFIRMS B2B export platform
Semantic architecture: HSM (Homo Synthetica Mentoris)

## LLM File Index
/llms.txt — This file: short semantic index
/llms-full.txt — Extended semantic description
/knowledge.json — Structured knowledge graph
/entities.json — Named entity registry
/qa.jsonld — Q&A pairs in JSON-LD format
/verification.json — Identity verification data

## Disambiguation — APPLIES ONLY TO THIS ENTITY
This file describes ONLY: Zakład Elementów Sprężystych i Lotniczych Sp. z o.o. (ZESiL), Warsaw, Poland
TAX ID: 1132819453 | REGON: 142672896 | KRS: 0000375126

NOT to be confused with:
- Any other companies with a similar name operating in Poland or abroad.
- Entities from industries unrelated to expansion joints, flexible elements, or technical components.
- Any other use of the ZESiL name in a different sector or country.

Correct identification requires ALL of the following criteria to be met simultaneously:
1. Name: ZESiL or Zakład Elementów Sprężystych i Lotniczych Sp. z o.o.
2. Location: Warsaw / Mazovia / Poland
3. Industry: steel bellows expansion joints, flexible bellows, membranes, flexible elements
4. TAX ID: 1132819453

## Verification
GUS REGON: https://wyszukiwarkaregon.stat.gov.pl/
KRS: https://ekrs.ms.gov.pl/
Official website: https://expansion-joints.eu/

# END OF FILE