Product Advantages: Propel your construction ventures into a new era with the cutting-edge Threaded Rebar Couplers from Hainan Zirunda International Trade Co., Ltd. Our groundbreaking couplers redefine reliability and efficiency, setting a new industry standard. Experience the pinnacle of construction innovation with our Rebar Couplers, Splicing, Connectors, Thread Couplers, Steel Splicing, Rebar Splicing, and Sleeves. Each component is meticulously designed to deliver unparalleled performance and unwavering reliability.
1. Skillfully forged from premium 20# seamless steel pipe, these couplers set an industry gold standard for durability and strength. They effortlessly endure the rigors of time and the toughest construction environments, ensuring unmatched resilience.
2. Our steadfast dedication to uncompromising national standards is evident in every product. Each sleeve undergoes rigorous inspection and certification, complete with comprehensive inspection reports, detailed material lists, and verifiable certificates, ensuring matchless quality and absolute peace of mind.
3. Our expansive array of specifications and models is backed by a substantial inventory, ensuring rapid delivery. Regular models are dispatched the same day, offering quick and dependable service that consistently exceeds expectations.
4. Our esteemed collaborations with industry titans such as China Construction, China Railway, and MCC highlight our profound expertise and the significant trust we have cultivated over the years.



Diameter |
Length |
Outside diameter |
pipe thickness |
Bore size |
Φ14 |
95/ |
28 |
4.5 |
23.5 |
Φ16 |
95/110 |
30 |
4.5 |
25.5 |
Φ18 |
118/125 |
34 |
5.7 |
28.3 |
Φ20 |
120/130 |
36 |
6 |
30 |
Φ22 |
132/140 |
40 |
6.8 |
33.2 |
Φ25 |
150/170 |
45 |
7.5 |
37.5 |
Φ28 |
168/190 |
50 |
8 |
42 |
Φ32 |
192/220 |
55 |
9 |
46 |
Φ36 |
220/ |
63 |
10 |
53 |
Φ40 |
250/ |
70 |
11 |
59 |


1. With over 20 years of unrivaled expertise in factory production, we set the industry benchmark for excellence.
2. Our state-of-the-art production equipment epitomizes technological excellence, ensuring every product not only meets but exceeds industry standards with exceptional quality.
3. Enjoy efficient and seamless transactions with our expertly optimized logistics solutions, designed to make your interactions smooth and completely hassle-free.
4. Our meticulous quality control procedures are unparalleled, guaranteeing that only the finest quality products reach our valued clients.
5. We offer a wide array of flexible, convenient payment options, tailored to your specific needs for a seamless purchasing experience.
6. With a vast inventory and streamlined production cycle, we stand ready to meet your most urgent requirements with unmatched ease and speed.
