ZZ Heat Shrink specializes in the research, development, production and sale of radiation-crosslinked heat shrink materials and silicone rubber insulating materials. Founded in June 1998 in the Huangshi Economic & Technological Development Zone, Hubei Province, the company established Dongguan Zhizheng Rubber & Plastic Materials Co., Ltd. in Guangdong in 2005.
Our main products include the LRS series of halogen-free flame-retardant heat shrink tubing, the YRS series for automotive oil pipe protection, the SRS series of flame-retardant dual wall tubing, the TLG series for high-speed railway track slabs, the NFR series of non-flame-retardant tubing, the MPG series of busbar protection tubing, heat shrink power cable accessories rated up to 35 kV, and silicone rubber cold shrink power cable accessories rated up to 35 kV. Tubing for special applications can be custom manufactured to customer requirements.
Our production system is certified under the three management standards ISO 9001:2015 (quality), ISO 14001:2015 (environmental) and OHSAS 18001:2007 (occupational health and safety). To serve automotive harness customers, the company passed the IATF 16949 automotive quality management system certification in 2019, and the dual wall tubing used in automotive harnesses has been third-party tested against harness performance requirements. Our core heat shrink tubing products carry UL certification and have been verified by SGS. Automated production equipment and precise testing instruments keep product quality stable and performance reliable, and our engineering team supports custom products and value-added services.
Guided by a people-oriented, honest and trustworthy company spirit, we are committed to quality products, responsive service and dependable technical support.
What started in 1998 as a production line for general-purpose polyolefin tubing has grown into a two-factory system with its own electron beam accelerator and a product range from 0.8 mm insulation tubing to 35 kV cable termination kits. In 2018 the company passed several management system certifications and was granted multiple patents for its heat shrink technologies. Along the way, we earned IATF 16949 certification for automotive quality management — opening the door to OEM and Tier 1 automotive suppliers worldwide.
Two production bases serve customers in China and overseas:
Hubei Production Base
Guangdong Production Base
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