HT are committed to be Your Reliable source for Pipe & Fittings.

Before production:

Raw material selection and inspection, to assure raw materials are qualified.

During production:

Advanced rolling mills and skilled workers, with on-line quality control and inspection.

Finished production:

Certified test is a must for clients to keep confidence on products, and take next step. We follow standards for spot testing or pre-shipment inspection.

Seaworthy packaging:

Excellent packaging is a crucial step for preventing goods from damage during transportation. It guarantees pipe and fittings delivered to clients’ hand as per required quality and surface.


Our Values

We keep pace with your project, as well as speed up your project.

seamless PIPE costoms

Client First

Our aim is to make our clients do a better business. We do, we fight and we change, all in the purpose to earn the satisfaction of our clients.


We sell products in TRUST. We make no compromise on integrity and honesty.

Fast Response

We strive to save clients’time and speed up the progress of the projects. Fast response and swift action are our style.


We are dedicated to offer a complete set of solutions, not just one piece of pipe or fittings. We equipped ourselves with technical proposals, assembly suggestions and after-sale services.

Main hubs

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pipeline test.

Mechanical Inspection

1. Perform the impact resistance test to determine the impact strength
2. Test the tensile strength of the pipes to determine how the material will react to forces being applied in tension.
3. Perform the deflection temperature test to ensure the pipe sample deforms under a specified temperature and conforms to international standards

pipeline test

Destructive & Non-destructive tests

tensile tests & impact tests
bend tests & hardness tests
intercrystalline corrosion test
pitting corrosion test
metallurgical tests
eddy current & x-ray testing
hydro & ultrasonic testing
positive material indentification testing

API 5L Stanard Petroleum and Natural Gas Industries—Steel Pipe for Pipeline Transportation Systems
ASTM A53 Standard Covers Seamless and Welded Black and Hot-dipped Galvanized Steel Pipe
ASTM A106 Covers Seamless Carbon Steel Grades A & B Pipe for High Pressure and High Temperature Service
ASTM A179 Standard Specification for Seamless Cold-Drawn Low-Carbon Steel Heat-Exchanger and Condenser Tubes
ASTM A213 for Seamless Ferritic and Austenitic Alloy-Steel Boiler Superheater and Heat-Exchanger Tubes
ASTM A333 Standard Specification for Seamless and Welded Steel Pipe for Low-Temperature Service
Butt Weld Fittings Size Schedule PDF
ASTM A500 for Cold-Formed Welded and Seamless Carbon Steel Structural Tubing in Rounds and Shapes
ASTM A519 Standard Specification for Seamless Carbon and Alloy Steel Mechanical Tubing
AWWA C200 Steel Water Pipe
DIN 30670 Polyethylene Coating for Steel Pipes and Fittings
DIN EN 10219-1 Cold Formed Welded Structural Hollow Sections of Non-alloy and Fine Grain Steel
EN 10220 Seamless and Welded Steel Tubes