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About Us

Runlin Tube

Tighter Seal

Cold shrink provides a constant radial pressure seal

Less Tools

No heat required with Runlin Cold Shrink – 100% cold applied

Wide Application

Moisture resistant for submersible and outdoor applications

Stable Quality

Quality – long term reliabilit

Runlin Factory’s Story

We are professional manufacturer of cold shrink tubes and its relative products. Our main products are silicon cold shrink tube, electrical accessories, sealing adhesive tapes.

Depending on the rich experience and full-set machines of cold shrink tubes, such as plastic strip extruder, ultrasonic spot welding plastic support belt machine, pipe expanding machine and logo printer. We can offer not only standard tubes, but also special service to customers from designing to produce of cold shrink tubes.

Power & Energy

High quality products produced by RUNLIN Tube factory backed by support of our expert consultants to fulfill a whole range of applications in electrical market.


Comprehensive range of products to create value for the power sector and support sustainable development


RUNLIN Tube is focused on insulate, seal and protect appliances and devices that use for wireless communications,  to make the installation of coax and low voltage connectors seals easy.

Our Test

Our factory has passed the quality management system audit and obtained the certificate of ISO9001-2008. which are qualified by electrical equipment performance test center of the power industry ministry insulation.

We Won Many Factory Awards & Got Many Ceritificates Since 2015
Runlin factory iso9001 certificate
ISO9001 Certificate
Plastic support belt pipe RoHS
Plastic Support Belt RoHS 2017
RoHS test report plastic support belt pipe 1kv-11kv
Plastic Support Pipe RoHS 2016

8 Sets

Plastic Support Belt Making

3 Sets

Silicone Rubber Pipe Making

30 Sets

Ultrasonic Spot Welding Plastic Belt

Factory Prolificacy

Pipe Expanding
450 thousand cold shrink tube can be expanded per month.
Supporting Tube
We can offer 2.4 million supporting tubes every month.
Cable accessories
We can offer 9 thousand sets cable accessories month.