ABOUT US

Highplus International Limited

Highplus International Limited is a leading supplier of ductile and gray iron products, with our trading office conveniently located near Victoria Harbour in Tsim Sha Tsui, Hong Kong. Our manufacturing facility in Weifang, China, boasts over 25 years of experience in production and development, equipped with advanced workshops for metal cutting, welding, and hot-dip galvanizing to cater to your diverse processing needs for cast iron products.
We take pride in our team of first-class industry professionals who bring rich practical experience to the table. Quality is at the forefront of our operations; all products undergo stringent quality control and adhere to international standards, ensuring exceptional performance, durability, and reliability even in the toughest conditions.

Our products have achieved multiple certifications, including ISO9001:2015, ISO14001:2015, ISO45001:2018, as well as the United States FM and UL certifications, CE certification, and other safety standards. Our extensive product line includes Couplings, Mechanical Tees, Elbows, Equal Tees, Grooved Reducers, Crosses, Threaded Concentric Reducers, Caps, Adapter Flanges, Piping Hangers, Valves and other OEM casting products.

Guaranteeing stable and timely supply, credible quality and dedicated service, our products are widely recognized and trusted across various industries, adapting to the continuously changing economic and social landscape. We invite customers from all sectors to reach out for future collaborations and mutual success!

Quality Management of Highplus International Ltd.

Quality is the cornerstone of Highplus International Limited. We take immense pride in our unwavering commitment to excellence, which is reflected in our rigorous quality control processes. Our products undergo thorough testing to comply with stringent international standards, guaranteeing superior performance, longevity, and reliability. Understanding the demands of challenging environments, we engineer our products to withstand harsh conditions with utmost efficacy.

Quality Control Content: ‌

‌Appearance Inspection‌: The pipes and fittings should be inspected on site to ensure that there is no crack, shrinkage, slag inclusion, folding or heavy skin, the threaded sealing surface is intact, the non-metallic sealing gasket is flexible in texture, the flange sealing surface is smooth and intact‌.

Material Selections:

‌Pipe fitting material should have good corrosion resistance, high temperature resistance, pressure resistance and other characteristics, commonly used materials including stainless steel, copper alloy, etc. These materials not only have high strength, high toughness, but also have good processing properties‌.

Size Requirements:

The size of pipe fittings should be manufactured in strict accordance with the design requirements, including diameter, wall thickness, length and other parameters to ensure dimensional accuracy and surface quality.

Sealing Performance:

The sealing performance of pipe joint is the key to ensure the normal operation of the system, should use the appropriate sealing material and sealing structure to ensure the tightness and firmness of the joint.

Strength and Pressure Requirements:

Pipe fittings should be able to withstand the working pressure and impact pressure of the system to ensure that there will be no rupture or leakage in the process of fire extinguishing‌.

‌Production Technology and Equipment:

The use of advanced production technology and equipment to ensure that the quality and performance of products meet the standard requirements‌.

Quality Management of Highplus International Ltd.

About Us

ABOUT US

Highplus International Limited

Quality Management of Highplus International Ltd.