Select high-quality heat shrink tubing
Precision Manufacturing · Quality Promise · Professional Service
View our productsMaster Craftsmanship
Specializing in heat shrink tubing manufacturing for nearly 30 years.
View Technical ExpertiseSuperior Product Quality
Strictly adhering to ISO9001 and IATF16949 quality management systems, every process undergoes precision testing to ensure stable and reliable product delivery. Core materials are sourced from renowned suppliers in Japan, South Korea, Europe, and the United States.
Rich production experience
30 years of heat shrink tubing manufacturing experience, serving 126 enterprise customers with deep expertise in industry-specific tubing requirements.
Comprehensive after-sales service
Rapidly respond to customer needs with customized product solutions tailored to operating conditions. Support sample testing, manage end-to-end production and delivery, and provide comprehensive after-sales technical support.
Our Products
Professional manufacturer of PET and PVC heat-shrinkable insulating sleeves for aluminum electrolytic capacitors, lithium batteries, automotive electronics, and more.
PET Heat Shrink Tubing
Aluminum electrolytic capacitors and lithium battery insulation sleeves, available in multiple colors
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PVC Heat Shrink Tubing
Aluminum electrolytic capacitors and lithium battery insulation sleeves, available in multiple colors
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Custom Printed Heat Shrink Tubing
Customizable multi-color and multi-pattern printing with excellent heat resistance, suitable for capacitors and lithium-ion battery applications.
View detailsTechnical Capabilities
Equipped with advanced production machinery and a skilled technical team to ensure product quality and on-time delivery.
Advanced Equipment · Masterful Craftsmanship
Extrusion Printing Production Line
Equipped with 40+ sleeve extrusion and printing production lines, capable of meeting high-volume custom sleeve printing and manufacturing needs.
R&D Team
Senior materials engineering team offering custom high-temperature, multi-color, multi-size, and special-print PET/PVC heat shrink tubing.
Innovation Driven. Delivering Better for Our Customers.
Continuously invest in R&D, adopt advanced equipment, and optimize processes to deliver superior products and services to our customers.
About TINGSUN
Jiangsu Dingshang Electronic Materials Co., Ltd. was listed on the National Equities Exchange and Quotations (NEEQ) in 2020, with the stock abbreviation "Dingshang Electronic" and stock code 873521. As a leading company in China's heat-shrinkable tubing niche, we specialize in the research, development, and manufacturing of organic polymer materials, heat-shrinkable tubing, and electronic components. Our core products include PVC/PET heat-shrinkable tubing, providing precise insulation wrapping and identification solutions for aluminum electrolytic capacitor casings. These products are widely used in packaging aluminum electrolytic capacitors, rechargeable batteries, and battery packs; marking inductors; and insulating connector terminals. We obtained ISO9001 quality management system certification in 2004 and achieved IATF16949 quality management system certification and recognition as a National High-Tech Enterprise in 2024. Leveraging imported raw materials and advanced equipment, we continue to expand our presence in China's new energy battery sector and related industries.
