Professional manufacturer of Tire O-Rings with full material coverage including NBR, EPDM, HNBR, FKM and IIR. Designed for passenger, truck, OTR mining tires and rim sealing systems. Available in metric, inch and custom sizes. Reliable industrial tire sealing solutions worldwide.

Double Safe supplies high-quality agricultural inner tubes for tractors and farm machinery. Full size range from 8 to 54 inches with multiple valve options. Excellent air retention, durability, and OEM service.

Professional industrial tires and inner tubes for forklifts, ports, mining, construction and industrial vehicles. Full size range, high durability, OEM and global supply.

Material Handling: Hand trucks (sack trucks), dollies, platform carts, and warehouse trolleys.Lawn & Garden Machinery: Riding lawn mowers (front or rear wheels), snow blowers, rototillers, and wood chippers.Small Vehicles: Golf carts, go-karts, youth ATVs, and beach buggies.Support Equipment: Mobility scooters, wheelchairs, portable generators, and air compressor frames.

Tire Inner Tube Valve Size list for TRA & JIS & ETRTO & GB(China)

Common Sizes of Agriculture & Farm tire inner tubes7.50-18 12.5/80-18 8.3-24 9.5-24 11.2/12.4-24 23.1-26 11.2/12.4/13.6-28 14.9/16.9-28 16.9/18.4-30/32/34 16.9/18.4-38 TR218A

Common Sizes of Industrial tire inner tubes4.00-8 5.00-8 6.00-9 6.50-10 5.00-12 7.00-12 28*9-15 18*7-8 21*8-9 23*9-10 27*10-12 TR87 JS2 TR77A TR13

Common Sizes of Truck & Bus tire inner tubes600-20 650-20 700-20 750-20 825-20 900-20 1000-20 1100-20 1200-20 1200-24 1300-20 1400-20 TR78A600R20 650R20 700R20 750R20 825R20 900R20 1000R20 1100R20 1200R20 1200R24 1300R20 1400R20 TR179A

Common Sizes of Light Truck tire inner tubes650-14 500/550/600/650-15 750/825-15 900/1000-15 550/600/650/700-16 750/825/900-16 11L-15/16 TR13/TR15650R14 500/550/600/650R15 750/825-15 900/1000R15 550/600/650/700R16 750/825/900R16 TR75/tr177A

Common Sizes of engineering OTR tire inner tubes13.00/14.00-24/25 15.5-25 16.00-25 17.5-25 18.00-25 20.5-25 23.5-25 26.5-25 29.5-25 TR179A13.00/14.00R24/25 15.5R25 16.00R25 17.5R25 18.00R25 20.5R25 23.5R25 26.5R25 29.5R25 TRJ1175C