Company Overview
l Our Business &
Certifications
Powered by certified expertise and a worldwide partnership network, Alvion Cyl defines the next benchmark in high-pressure gas solutions.
Connecting Technology with Global Markets
Alvion Cyl specializes in the global distribution and import–export solutions for high-pressure gas cylinders and inspection equipment.
Through close collaboration with leading technology partners in Korea and abroad, we deliver certified equipment and services to customers worldwide with speed, accuracy, and reliability.
Core Industries of Alvion Cyl
Safety Begins at
the Supply Stage
We deliver KGS, DOT, and TPED certified high-pressure cylinders to mission-critical industries—including semiconductor, medical, industrial, and fire-protection sectors—where safety and performance are non-negotiable.
Precision Engineering &
Safe Usage
Maximize engineering precision with
proven expertise.
We prioritize safety at every stage.
Quality Verification Comes Before Completion
Alvion Cyl is the exclusive distribution partner in South Korea for Hexagon Digital Wave (HDW), a U.S.-based industry leader in ultrasonic examination technology.
We provide advanced diagnostic solutions for companies seeking lifecycle management and data-driven quality control of their equipment.
Ultra-Precision Surface Treatment
We remove moisture, oxides, and particles from the internal surface of the cylinder to achieve an ultra-smooth finish of Ra ≤ 1 μm, delivering corrosion-resistant cylinders with superior durability.
Safety Is Proven,
Not Assumed
Alvion Cyl provides specialized requalification services that systematically verify the safety, reliability, and regulatory compliance of high-pressure gas cylinders.
All inspection procedures follow international standards such as KGS, US DOT, and TPED, ensuring data-driven quality that customers can trust.
l Global Certification Standards
Supported by global certifications and verified partnerships, Alvion Cyl provides reliable, industry-leading cylinder solutions to clients across international markets.
Technical Partner: Fine Cyl Tec
ISO 14001
Certified Environmental Management System
Technical Partner: Fine Cyl Tec
ISO 9001
Certified Quality Management System
Technical Partner: Fine Cyl Tec
U.S. Department of Transportation (US DOT)
Approved Facility for High-Pressure Cylinder Requalification
Technical Partner: Fine Cyl Tec
Korea Gas Safety Corporation (KGS)
Designation for High-Pressure
l Alvion Cyl’s Global Strategy
Alvion Cyl operates certified manufacturing, processing, and inspection services through its headquarters in Korea, while continuously expanding its global distribution network and equipment partnerships through both its Korean headquarters and U.S. branch. This integrated global structure enables faster delivery and after-sales support, certification compliance aligned with international quality standards, and comprehensive one-stop solutions that allow customers to address multiple processes through a single trusted partner.
Korea Headquarters
• Supply of high-pressure gas cylinders and
related accessories
• Processing and quality services including
internal surface treatment, plating, and
cylinder requalification
• Domestic distribution of HDW non-
destructive testing equipment
U.S. Branch
• Technical and service support for
overseas customers
• Development of global partnerships and acquisition of new international clients
• Global hub for HDW equipment and other overseas inspection and processing solutions
l Family Company
Hexagon Digital Wave
Hexagon Digital Wave leads the industry in Ultrasonic Examination (UE) and Modal Acoustic Emission (MAE) technologies for high-pressure gas cylinders, setting new standards in industrial safety with its unrivaled non-destructive testing (NDT) solutions.
Dongyang industrial gases co., ltd
With 30 years of expertise in gas manufacturing and distribution, Alvion Cyl establishes the foundation of industrial safety through a stable supply network ranging from oxygen and nitrogen to specialty gases for semiconductors.
FineCylTec
FineCylTec provides a unique One-Stop Total Service, managing everything from high-pressure gas cylinder procurement to precision internal processing and official recertification, maximizing productivity and safety at industrial sites through technical partnerships.
l Our Business & Certifications
Powered by certified expertise and a worldwide partnership network,
Alvion Cyl defines the next benchmark in high-pressure gas solutions.
Connecting Technology
with Global Markets
Alvion Cyl specializes in the global distribution and import–export
solutions for high-pressure gas cylinders and inspection equipment.
Through close collaboration with leading technology partners in Korea
and abroad, we deliver certified equipment and services to customers
worldwide with speed, accuracy, and reliability.
Core Industries of Alvion Cyl
Safety Begins at the Supply Stage
We deliver KGS, DOT, and TPED certified high-pressure cylinders to mission-critical industries—including semiconductor,
medical, industrial, and fire-protection sectors—where safety and performance are non-negotiable.
Precision Engineering & Safe Usage
Maximize engineering precision with proven expertise.
We prioritize safety at every stage.
Quality Verification Comes Before Completion
Alvion Cyl is the exclusive distribution partner in South Korea for Hexagon Digital Wave (HDW),
a U.S.-based industry leader in ultrasonic examination technology.
We provide advanced diagnostic solutions for companies seeking lifecycle
management and data-driven quality control of their equipment.
Ultra-Precision Surface Treatment
We remove moisture, oxides, and particles from the internal surface of the cylinder to achieve an ultra-smooth finish
of Ra ≤ 1 μm, delivering corrosion-resistant cylinders with superior durability.
Safety Is Proven, Not Assumed
Alvion Cyl provides specialized requalification services that systematically verify the safety, reliability, and regulatory compliance of high-pressure gas cylinders.
All inspection procedures follow international standards such as KGS, US DOT, and TPED, ensuring data-driven quality that customers can trust.
l Global Certification Standards
Supported by global certifications and verified partnerships, Alvion Cyl provides reliable,
industry-leading cylinder solutions to clients across international markets.
Technical Partner: Fine Cyl Tec
ISO 14001
Certified Environmental Management System
Technical Partner: Fine Cyl Tec
ISO 9001
Certified Quality Management System
Technical Partner: Fine Cyl Tec
U.S. Department of
Transportation (US DOT)
Approved High-Pressure Cylinder
Requalification Facility
Technical Partner: Fine Cyl Tec
Korea Gas Safety Corporation (KGS)
Designation for High-Pressure
l Alvion Cyl’s Global Strategy
Alvion Cyl operates certified manufacturing, processing, and inspection services through its headquarters in Korea,
while continuously expanding its global distribution network and equipment partnerships through both its Korean headquarters
and U.S. branch. This integrated global structure enables faster delivery and after-sales support, certification compliance
aligned with international quality standards, and comprehensive one-stop solutions that allow customers to address multiple
processes through a single trusted partner.
Korea Headquarters
U.S. Branch
• Supply of high-pressure gas cylinders and related accessories
• Processing and quality services including internal surface
treatment, plating, and cylinder requalification
• Domestic distribution of HDW non-destructive testing equipment
• Technical and service support for overseas customers
• Development of global partnerships and acquisition
of new international clients
• Global hub for HDW equipment and other overseas inspection
and processing solutions
l Family Company
Hexagon Digital Wave
Hexagon Digital Wave leads the industry in Ultrasonic Examination (UE) and Modal Acoustic Emission (MAE) technologies for high-pressure gas cylinders, setting new standards in industrial safety with its unrivaled non-destructive testing (NDT) solutions.
Dongyang industrial gases co., ltd
With 30 years of expertise in gas manufacturing and distribution, Alvion Cyl establishes the foundation of industrial safety through a stable supply network ranging from oxygen and nitrogen to specialty gases for semiconductors.
FineCylTec
FineCylTec provides a unique One-Stop Total Service, managing everything from high-pressure gas cylinder procurement to precision internal processing and official recertification, maximizing productivity and safety at industrial sites through technical partnerships.
President: Ji Ho Choi
Business Registration Number:
231-86-03338
Address: 3F, 784-100 Gyeongchung-daero, Gonjiam-eup, Gwangju-si, Gyeonggi-do, Republic of Korea
Family website
Copyright Alvion Cyl Inc. All rights reserved.
President: Ji Ho Choi
Business Registration Number: 231-86-03338
Address: 3F, 784-100 Gyeongchung-daero, Gonjiam-eup, Gwangju-si, Gyeonggi-do, Republic of Korea
Copyright Alvion Cyl Inc. All rights reserved.
