
Which Steel Strip Is Best for Roller Shutter Door Springs?
Roller shutter doors rely heavily on their spring systems to operate safely and smoothly. Whether used in commercial warehouses, garages,














Guangzhou Cgood Steel Co., Ltda. is a nationally recognized high-tech enterprise with over two decades of expertise in the development and manufacturing of precision steel strips and cutting solutions. Our specialization covers spring steel strip, high-strength steel strip, and dedicated new energy vehicle steel strip, along with alloy steel strips, stainless steel strips, and a full range of band saw blades for industrial cutting.
Operating from a modern production facility spanning more than 25,000 square meters, we integrate advanced processes including pickling, cold rolling, annealing, quenching and tempering, slitting, and polishing. With an annual output of approximately 15,000 tons, we ensure consistent supply capability for global customers.
We are dedicated to delivering high-precision, reliable, and cost-effective material solutions, with a strong track record in automotive manufacturing, new energy vehicles, machinery, and food processing industries. Whether for suspension springs, structural components, or battery system parts, our spring steel strip, high-strength steel strip, and new energy vehicle steel strip are engineered to meet stringent performance and safety standards.
Guangzhou Cgood Steel Co., Ltda. is a nationally recognized high-tech enterprise with over two decades of expertise in the development and manufacturing of precision steel strips and cutting solutions. Our specialization covers spring steel strip, high-strength steel strip, and dedicated new energy vehicle steel strip, along with alloy steel strips, stainless steel strips, and a full range of band saw blades for industrial cutting.
Operating from a modern production facility spanning more than 25,000 square meters, we integrate advanced processes including pickling, cold rolling, annealing, quenching and tempering, slitting, and polishing. With an annual output of approximately 15,000 tons, we ensure consistent supply capability for global customers.
We are dedicated to delivering high-precision, reliable, and cost-effective material solutions, with a strong track record in automotive manufacturing, new energy vehicles, machinery, and food processing industries. Whether for suspension springs, structural components, or battery system parts, our spring steel strip, high-strength steel strip, and new energy vehicle steel strip are engineered to meet stringent performance and safety standards.
Your reliable partner for custom spring, high-strength, and NEV steel strips, delivering quality and consistency to automotive manufacturers worldwide.
Choosing us means choosing a trusted long-term partner. With advanced equipment and technology, we exercise precise control throughout the entire process—from raw materials to manufacturing—ensuring exceptional product performance. We deliver tailored solutions and efficient delivery to meet your specific needs, continuously creating value for you.Specializing in spring steel strips, high-strength steel strips, and new energy vehicle steel strips, our product range includes automotive parts cutting band saws and exhaust system-specific saws. Strictly adhering to the JIS/IATF 16949 quality management system, we empower your future with reliable quality.

Roller shutter doors rely heavily on their spring systems to operate safely and smoothly. Whether used in commercial warehouses, garages,

Bandsaw blades operate under demanding conditions 鈥?continuous bending, tooth impact, abrasion, and high-speed cutting. Choosing the right steel grade is

Bright-annealed steel strip is widely used in industries that demand high surface quality 鈥?such as precision parts, springs, electronics, stainless