R4 Tubeless Industrial tyre (16.9-28 16.9-24 17.5L-24, 19.5L-24, 21L-24) are the most popular tyres from TOP TRUST tyre factory-QINGDAO WANGYU RUBBER CO., LTD (wangyutire.en.made-in-china.com), selling to over 55 countries.

Below are all sizes and brand-new tyre photo for your reference
OTR tyres: L-3, L-5 and G-2 series, with tube and tubeless ones.
Industrial tyres: Inflated and Solid forklift tyres, L-2 skid steer tyre, R4 tubeless tyre,
R3 road roller tyre.
Agricultural tyres: R-1 tractor tyre, F2 direction tyre, F3 and I-1 implement tyre.
TBB: All sizes of truck and bus bias tyres
LTB: All sizes of light truck bias tyres
Tube: Natural rubber and butyl ones for all sizes
Flap: All sizes of flaps are available.

We are QINGDAO WANGYU RUBBER CO., LTD, bias tyre factory for over 18 years. Here are the details.
1. Factory established in 1996
2. Specialized in Agricultural tyres, OTR tyres, Industrial tyres, TBB tyres, LTB tyres, inner tube and flaps.
3. Covering an area of 88, 000 sqm
4. Total number of employees: 620 professionals: 78
5. Export volume: >100 HC per month
6. Main market: Europe, America, Middle East, Southeast Asia, Africa
7. Certificate: DOT ISO9001: 2008 CCC
8. Brand: TOP TRUST, ALL WIN, SUNNINESS
We are QINGDAO WANGYU RUBBER CO., LTD. The factory is located in Qingdao, Shandong, China, with 18 years tyre production experience of 100, 000 sqm and RMB 96 million fixed assets. There are over 620 workers, 78 professionals included. Also, the factory is equipped with advance production and quality check equipment.

With 8 series and over 200 sizes of tyres, tubes and flaps, the monthly export volume has exceeded 110*40HQ. Now, we have exported to over 55 countries, with 15 agents in different countries. The brands are TOP TRUST, ALL WIN and SUNNINESS, OEM brand is also accepted,  all certified by DOT, ISO9001, CCC and BV, SGS testified.

Agricultural Tyre: 23.1-26-12TT, 20.8-38-12TT, 18.4-42-12TT, 18.4-38-12TT, 18.4-34-12TT, 18.4-30-12TT, 18.4-26-12TT, 15.5-38-12TT, 15-24-10TT, 16.9-38-12TT, 16.9-34-12TT, 16.9-30-12TT, 16.9-28-10TT, 16.9-24-10TT, 14.9-28-10TT, 13.6-28-10TT, 12.4-28-10TT, 11.2-28-10TT, 14.9-28-10TT, 14.9-24-6TT, 13.6-38-10TT, 13.6-28-10TT, 13.6-24-10TT, 12.4-28-10TT, 12.4-24-10TT, 12-38-8TT, 11.2-38-8TT, 11.2-28-8TT, 11.2-24-8TT, 9.5-24-8TT, 9.5-20-8TT, 8.3-24-8TT, 8.5-20-8TT, 8.3-20-8TT, 7.5-20-8TT, 7.5-16-8TT, 6.00-12-8TT, 6.00-16-8TT, 5.5-17-6TT, 5.00-12-6TT
 
OTR Tyre: Full range of L3/E3, E-3 Radial Pattern, G2/L2, L-5 series are available
29.5-25TT/TL, 26.5-25TT/TL, 23.5-25TT/TL, 20.5-25TT/TL, 17.5-25 T/TL, 15.5-25TT/TL, 1800-25TT/TL, 1800-24TT/TL, 16/70-24TT, 16/70-20TT, 1600-25TT/TL, 1600-24TT/TL, 14/90-16TT, 1400-24TT/TL, 1200-16TT
 
Forklift Tyre: 825-15TT, 825-12TT, 28*9-15TT, 750-15TT, 700-12TT, 700-9TT, 650-10TT, 600-9TT, 500-8TT
 
R-4 Backhoe Tyre: 16.9-28 16.9-24 17.5L-24, 19.5L-24, 21L-24, 12.5/80-18, 10.5/80-18
 
L-2 SKID STEER TYRE: 10-16.5, 12-16.5, 14-17.5, 15-19.5

Quality management, production line, factory, tyre exhibition and loading.
We are Premier member of Alibaba and Made-in-China.
Besides, we go to many tyre exhibitions at home and abroad.
At home: Spring and Autumn Canton Fair, twice Shanghai Tyre exhibition, Guangrao and Qingdao Tyre Exhibition.
Abroad: Equip Auto in Alger, Algeria (March), Sao Paolo Tyre show in April, Dubai Automechanica in June, Panama Latin American Tyre show in July, Las Vegas SEMA show in November.

For more information, please feel free to contact me.