Our company is a national high-tech enterprise integrating R&D, manufacturing and sales of 4 steel tee, different pipe fittings, pipe connector and other products, and a member of the National 4 steel tee, different pipe fittings, pipe connector Standardization Technical Committee. In addition to improving the quality of our 3 t pipe, we also need to develop more sales markets. In our company, you can always find products that meet your needs. The company will also continue to uphold the business philosophy of professionalism, integrity, diligence and quality to provide more guarantees for customers. As part of the company, employees have an obligation to identify the company's problems and solve them. This obligation cannot simply be passive and await authorization, but should be increased with more enthusiasm and initiative. Lean management originates from lean production, and the core of lean management is to minimize various forms of waste and continuously improve enterprise value. In the future, all of our staff will continue to work hard to develop and produce more quality products to actively serve our customers. Customer satisfaction management system runs through the whole process of quality management system, which is the need for enterprises to achieve continuous improvement and participate in fierce market competition. It is in line with the competition concept of 'fight value war, not price war', in the case of fierce competition, our market has been expanding.
  • ASME Tee
    The HAIHAO brand ASME B16.9 butt-welding fittings series is designed and manufactured in strict accordance with the ASME B16.9-2024 standard, covering various structural types including equal...
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  • Steel Tee
    The HAIHAO steel tee is a pipe fitting designed and manufactured in accordance with ASME B16.9, GOST 17376, and DIN2615 standards, with a size range of 1/2" to 48" (DN15–DN1200). Wall thickness...
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  • Butt Weld Tee
    A butt weld tee is available from NPS 1/2 to NPS 48 across multiple wall-thickness series.
    Its weld ends allow the branch fitting to join directly into a fabricated piping system.
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  • Stainless Steel Reducing Tee
    A stainless steel reducing tee is available in GOST and ASME size systems, with five wall-thickness series.
    Its reduced outlet connects a smaller branch to a larger run within one fitting.
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  • Carbon Steel Tee
    High Strength, Strong Pressure-Bearing Capacity
    Excellent Weldability, Easy to Install
    High Cost-Effectiveness, Economical and Durable
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  • High Pressure Tee
    High Pressure Resistance, Safe and Reliable
    Precision Formed, Leak-Free
    Corrosion Resistant, Long Service Life
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  • GOST Standard Tee
    The GOST 17376 tee is a butt-welding pipe fitting designed for branching from main pipelines in industrial systems.Manufactured in accordance with the Russian state standard GOST 17376, these tees...
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  • Din Tee
    BW Butt-Weld, Material carbon steel / stainless steel / alloy steel, Wall thickness 3-40mm.
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  • Stainless Steel Tee
    HAIHAO brand stainless steel tees are manufactured in accordance with ASTM, GOST, and DIN standards, covering various types such as equal, reducing, 45°, and Y-type designs. With excellent...
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  • Alloy Steel Tee
    Material: Core material made of A234 WP91 alloy steel
    Structure: Integral hot pressing/forging, smooth flow channels, no stress concentration points
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  • GOST Reducer
    1.Execution Standard: GOST 17378
    2.Type/Model: Concentric、Eccentric
    3.Specification: φ21.3mm-1016mm
    4.Connection Type: BW
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  • Threaded Pipe Tee
    Forged threaded tee, ASME B16.11 compliant
    90° branch connection for tight or no-weld areas
    Pressure rating: 3000#–6000#
    Solid forged steel, no porosity
    Simple screw-on...
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Ryan McArdle star star star star star
The customer service staff is very patient and has a positive and progressive attitude to our interest, so that we can have a comprehensive understanding of the product and finally we reached an
Gloria Sanders star star star star star
The customer service staff's answer is very meticulous, the most important is that the product quality is very good, and packaged carefully, shipped quickly!
Ashley Hardee star star star star star
Product variety is complete, good quality and inexpensive, the delivery is fast and transport is security, very good, we are happy to cooperate with a reputable company!
Austin Adams star star star star star
This is the first business after our company establish, products and services are very satisfying, we have a good start, we hope to cooperate continuous in the future!
Gertrude Robledo star star star star star
Production management mechanism is completed, quality is guaranteed, high credibility and service let the cooperation is easy, perfect!
Brian Sullivan star star star star star
Product quality is good, quality assurance system is complete, every link can inquire and solve the problem timely!
The company adheres to the principle of "integrity-based, win-win cooperation" and cooperates sincerely, and has won a good reputation among the customer base. We can also customize gas line socket tee, stainless steel tube bending for you according to your needs. Reliable after-sales service, maintenance, and guidance can solve your worries. As one of the most professional 3 t pipe manufacturers and suppliers in China, we are able to meet the needs of the majority of our customers. Please rest assured to wholesale high quality 3 t pipe made in China here from our factory. For price consultation, contact us.
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