About Us

GUOHAOSEALS

GUOHAOSEALS was founded in 2017 as a high-end sealing technology solution provider, dedicated to customized sealing development and precision manufacturing solutions for customers worldwide.

With the core team owning more than 20 years of professional experience in the sealing industry, GUOHAOSEALS is a reliable and resourceful sealing specialist. We help you solve custom sealing supply and technical challenges, reduce equipment leakage risks and improve the stability and service life of your equipment.

GUOHAOSEALS focuses deeply on customer needs. We serve more than 600+ customers globally, including well-known enterprises in petroleum, new energy, engineering machinery, shipbuilding and electronics industries. We own an independent technical R&D center and complete testing laboratory, integrating product development, material formulation test, physical performance test, chemical compatibility test, trial production and finished product inspection.

Our manufacturing quality is guaranteed by a full set of industry certifications including ISO9001, SGS, ROHS, REACH, FDA, TUV and CE. These qualifications prove that GUOHAOSEALS strictly follows international quality and safety standards in sealing production. We implement standardized production management and traceable quality control system to support fast response for both standard stock and custom drawing orders.

GUOHAOSEALS products cover a complete range of hydraulic & pneumatic seals: spring energized seals, glyd rings, skeleton oil seals, PTFE seals, stainless steel oil seals, FKM/FFKM O-rings, polyurethane seals, gaskets and custom special-shaped seals. Our products are widely used in new energy vehicles, petrochemical, marine & shipbuilding, engineering machinery, mining equipment, electric power, semiconductor, pumps & valves, food machinery and automation equipment.

Production equipment and capacity:

We are equipped with advanced precision production machines, including molding machines, CNC lathes, extrusion equipment, sintering furnaces and precision punching machines. Our sealing production range covers 0.2mm to 5000mm, supporting mass standard production and small-batch non-standard custom processing.

Partner：

Raw materials:

We adopt high-performance raw materials from global top brands such as DuPont, Solvay, Daikin, 3M, BASF and Zeon, to guarantee stable high and low temperature resistance, pressure resistance and chemical corrosion resistance.

Design and R&D: 

Professional technical R&D team with rich material and structural engineering experience, support rapid drawing evaluation and sample development.

Service: 

24 hours online technical support, fast quotation & sample delivery to meet customer demands.