
Over the years, Carlos Metal Building Material Co., Ltd. has been maintaining a leading position in the industry. We develop, produce, and supply square seam packet column for years. Carlos Metal Building Material's aluminium manufacturing process is various in types and styles to meet the different needs of customers. Carlos square seam packet column is made by our skillful and experienced professionals. Strict packaging process will ensure the safety of products. The product can live up to its stated capacity and won't leak away its charge when people are not using them. Our products have all passed the certification of ISO 9001 and environmental system of ISO 14001.

We are committed to building a fair and just business environment. We will never conduct business that is illegal or harms the interest of the stakeholders.

