​GRWA Factory has always upheld the relentless pursuit of excellent quality, continuously exploring and applying the most advanced welding technologies. TIG welding and laser welding, as the two core welding technologies of GRWA Factory, each play an irreplaceable role in the manufacture of automotive parts with their unique advantages.

In today's rapidly evolving global economy and technology landscape, new energy vehicles (NEVs) are transforming our modes of transportation at an unprecedented pace. With the increasing global emphasis on environmental protection and the transformation of energy structures, NEVs, especially hyb

In recent years, countries around the world have introduced stringent emission regulations to reduce pollutants from vehicle exhausts. Therefore, leveraging its exceptional technical prowess and extensive industry experience, GRWA has focused on developing and promoting efficient and eco-friendly vehicle exhaust purification technologies, particularly key components such as Catalytic Converters (DOC) and Diesel Particulate Filters (DPF).

​In the automotive industry, every detail is crucial to a vehicle's performance, safety, and overall quality. The choice of materials is particularly critical in determining a vehicle's quality. GRWA, as your trusted automotive parts partner, fully understands the importance of material selection. Today, we invite you to delve deeper into various premium raw materials.

​Converting your car's exhaust to a straight-pipe setup for more power and a louder sound may seem appealing, but it comes with risks. One Honda owner found this out the hard way when his modified exhaust caused noise complaints, failed emission tests, and harmed the environment. The modification also decreased engine efficiency and increased fuel consumption. He regretted not consulting professionals and ended up spending more to revert to the original setup. Before modifying your car, understand the risks and consult experts. Always comply with laws and environmental requirements. GRWA, a trusted automotive modification factory, offers safe and reliable custom parts.

At GRWA, we take pride in our advanced manufacturing capabilities and commitment to delivering high-quality exhaust manifolds. Our state-of-the-art production facility, located in the heart of Shandong Province, spans 2000 square meters and is designed to meet the rigorous demands of both local

The Perfect Blend of Color and Art Water transfer printing is a special printing technique that can accurately transfer complex patterns and colors onto the surface of automotive exhaust system parts. (1) A wide range of color options: GRWA utilizes the water transfer printing process to provi

As global awareness of environmental protection continues to grow, an increasing number of countries and regions are implementing stringent vehicle emission standards, particularly concerning particulate matter (PM) emissions from diesel vehicles. To meet these challenges, the diesel particulate