Multiplication of engineering efficiency
Equipment reduce the burden
Continuous operation without replacement
With the API Specification Q1 issued by the American Petroleum Institution, Letone also obtained the certificate of Authority to use the Official API Monogram of API 7K and API 16C, certificate of Product Design Assessment, Manufacture Assessment and ABS type Approval issued by American Bureau of Shipping (API 7K & API 16C). Featured as high pressure, full flow, lightweight and long service life, Letone petroleum drilling hoses are widely used in inland and offshore petroleum drilling projects.
API 7K——High Pressure Cementing Hose
Product Introduction
Application:
flexible connection in the cementing manifold for delivery water-based and oil-based cement slurries at high pressure.  
Tube Type:
full low
Temperature range:
-20℃~+121℃(-4℉~+250℉)
Lt302 API 16C——Flexible Choke And Kill Hose
Application:flexible connection in the chock and kill manifolds for delivery oil-gas mixture that containing hydrogen sulfide (H₂S) and other dangerous gases and various water-based, oil-based and foam killingfluids under high pressure
Tube:HNBR
Reinforcement:many layers of high tensile super flexible spiral steel wire or steel cable
Cover:high temperature and fire resistant synthetic rubber (resistant to 704 °C open fire for 30 minutes)
Protective Layer:stainless steel armor
Temperature Range:-29℃~+121℃(-20℉~+250℉)
Standard:API Spec. 16C FSL0 FSL1 FSL2 FSL3 | ABS
WORKSHOP
WAREHOUSE
EQUIPMENT
20+ Years Of Experience
Established in 2003, Letone is an industry-recognized high-quality rubber hose manufacture and service company, which devotes to the production, R&D, and sale of rubber compounds, rubber hoses & fluid connectors and rubber-plastic seals. Thanks to its stable quality and good reputation in the market, Letone has won the“Top Ten Rubber Hose Enterprises in China” issued by the China Rubber Industry Association Rubber & Belt Branch for many consecutive years. On 15th Nov. 2021, Letone (Stock Code: 832225) is listed on the Beijing Stock Exchange.
Innovation leads the high-quality development of the industry, serving the global intelligent manufacturing of equipment