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Our core business covers aluminum alloys, copper alloys, stainless steel, alloy steel, and special alloys, complemented by customized solutions in sizes, shapes, and materials to meet diverse customer needs. Backed by advanced production facilities and an efficient logistics network, we ensure high-quality products and timely deliveries. Sinoleopard's products are widely exported to markets including the United States, Germany, India, the Middle East, Southeast Asia, and beyond. Guided by our founder Mr. Lin Guojun's principle-"We focus on service, for without service, there is no continuity"-we are committed to innovation, quality, and customer satisfaction. Our mission is to provide high-value solutions that drive our clients' success, while our vision is to build an enduring ecological steel service platform that connects manufacturers, traders, logistics providers, and end-users worldwide. Sinoleopard remains dedicated to being a trusted partner, offering not only premium products but also comprehensive solutions that foster sustainable growth.

Shanghai Zhongduo Aluminum New Material Group Co. Ltd is a professional manufacturer of industrial aluminum alloy extrusion and profile over 10 years. With the building area around 10, 000 square meters and total invest amount around 1billion RMB Yuan. Our workshops have 7 aluminum extrusion production lines and more than 200 sets of advanced equipment. Which make us be the green manufacturing demonstration plant by Ministry of Industry and Information Technology.

Laiwu Xincheng Metal Co., Ltd, Established in year 2004, Located in Jinan City, Shandong Province, is a enterprice which integrates research, design, development, manufacturer and sales into one.

Jiangsu Changchen Materials Co., Ltd., parent of Juchen Metal Technology (Jingjiang) Co., Ltd., is situated in Jingjiang of Yangtze River Delta, boasting convenient land and water logistics and complete steel industrial supporting resources.

Dalian Dinglian Hardware Products Co., Ltd. is a specialized manufacturer of ASTM/ASME standard threaded pipe nipples and related pipe products. With extensive experience in machining carbon steel and stainless steel materials, we supply reliable piping solutions to customers in the industrial, plumbing, fire protection, oil & gas, and mechanical sectors.

Jinpeng Aluminium is a big scale Aluminium Extrusion Manufacturer for Aluminium Extrusion Proifle. We are located in Nanchang City, China.

Qingdao Xinhuiying Steel is a China's leading steel processing manufacturer, specializing in all kinds of custom steel structural fabrications, customized steel components and sheet metal fabrications for steel constructions. With extensive experience and a solid reputation, we serve a wide range of global industries including construction, automotive, machinery, energy and mining. With state-of-the-art technology and internationally recognized ISO-certified quality control systems, we are committed to providing high-performance steel products that meet the stringent requirements of modern industrial applications.

SHANDONG TONGMAO SPECIAL STEEL Co., Ltd is reputed at supplying copper pipe, aluminum tube, brass tube, stainless steel coil, galvanized steel coil, precision seamless steel pipe, also supply steel plate, steel coil and steel pipe, lead sheet etc.

Our company has been engaged in import and export trade for"moret than 20 years. It is a comprehensive manufacturing company engaged in high-quality steel and has established closecooperative relations with major steel production enterprises at home and abroadWith sufficient supplyreasonable price and honest service, we are based on the Chineseand foreign markets, have good corporate reputation and win the trust of our customers. We have a united and cooperative marketing team for development. With high-qualityservice and flexible business mode, we uphold the business philosophy of "survival byquality and development by reputation", Based on the principle of "honest operation, mutual benefit and common development", we are willing to provide new and oldcustomers with better and more professional services to create a better tomorrow.

Shandong Hongyan Metal Materials Co., Ltd.

Established in 2006, Shanghai Changzeng Metal Co., Ltd. Has decade years of experience in supplying and exporting in steel products, including Baogang, Angang Steel, Maanshan Steel. Our company mainly produce all kinds of steel products with good quality and low price in China. The total investment amounted to RMB10, 500, 000Yuan on producing Metallurgy, Mineral & Energy project.

With over two decades of experience in the steel structure and steel materials industry, we remain committed to quality and empower global cooperation. We are a comprehensive enterprise integrating steel structure R&D, production, sales, and foreign trade services. Since our factory was established in 1996, we have always been dedicated to professionalism and integrity, accumulating profound technical expertise and a strong market reputation within the industry.

Jiangsu Botejia Special Steel Co., Ltd is a professional manufacturer and we mainly produce Stainless Steel Sheet/Plate, Stainless Steel Coil/Roll, Stainless Steel Pipe/Tube, Stainless Steel Bar/Rod, Stainless Steel Wire, Copper Sheet/Plate, Copper Bar/Rod, Copper Pipe/Tube, Copper Coil/Roll, Copper Wire, Bronze Bar/Rod, Bronze PipeTube, Galvanized Steel Sheet/Plate, Galvanized Steel Coil/Roll, Galvanized Steel Pipe/Tube, Galvanized Steel Bar/Rod, Aluminum Sheet/Plate, Aluminum Pipe/Tube, Aluminum Coil/Roll, Aluminum Bar/Rod, Carbon Steel Sheet/Plate, Carbon Steel Coil/Roll, Carbon Steel Pipe/Tube, Carbon Steel Bar/Rod, Carbon Steel Wire, Pipe fittings, Profile Steel and so on. Dedicated to strict quality controland thoughtful customer service, our experienced staff member available to discuss your requirements and ensure full customer satisfiction.

Our company is a comprehensive enterprise specializing in the R&D, production and export of stainless steel raw materials and finished products. With over a decade of deep cultivation in the industry, we have built a complete industrial chain covering raw material smelting, precision processing and global distribution. Our main products include 304/316/201 series stainless steel plates, pipes, bars and customized deep-processing products. Relying on stable quality, flexible customization schemes and efficient delivery capabilities, our products are exported to more than 80 countries and regions such as Europe, America, Southeast Asia and the Middle East, and are widely used in construction decoration, mechanical equipment, chemical equipment, kitchenware & sanitary ware, automobile manufacturing and other fields.

Our company offers variety of products which can meet your multifarious demands. We adhere to the management principles of "quality first, customer first and credit-based" since the establishment of the company and always do our best to satisfy potential needs of our customers. Our company is sincerely willing to cooperate with enterprises from all over the world in order to realize a win-win situation since the trend of economic globalization has developed with anirresistible force.

Shanghai Jieruite Stainless Steel Co., Ltd is a large stainless steel enterprise integrating production and sales.

Our company offers variety of products which can meet your multifarious demands. We adhere to the management principles of "quality first, customer first and credit-based" since the establishment of the company and always do our best to satisfy potential needs of our customers. Our company is sincerely willing to cooperate with enterprises from all over the world in order to realize a win-win situation since the trend of economic globalization has developed with anirresistible force.

Shandong Jinghao Metal Materials Co., Ltd. Located in Liaocheng Development Zone Industrial Park, Shandong Province, China, we are an integrated manufacturer & exporter with self-owned production factory.  

Our company offers variety of products which can meet your multifarious demands. We adhere to the management principles of "quality first, customer first and credit-based" since the establishment of the company and always do our best to satisfy potential needs of our customers. Our company is sincerely willing to cooperate with enterprises from all over the world in order to realize a win-win situation since the trend of economic globalization has developed with anirresistible force.

Qingdao Hengjia Technology Co., Ltd was founded in 2018. We are located in Qingdao, Shandong, which is a beautiful seaside city and we have our own harbor.

Shaanxi Shunchengtian Materials Co., Ltd. is an integrative company of industry and trading, professionally producing and customizing stainless steel cold and hot rolled materials, which usually are exported to Europe, Southeast Asia, Africa, North and South America, etc.

Jiangsu Hengshuntai Steel Co., Ltd. is a stainless steel/alloy factory engaged in the researching, stocking, sale and service of stainless steel coils, stainless steel sheet, stainless steel pipes, stainless steel profile, stainless steel bar, alloy steel products.

TIANJIN GRAND METAL CO. Ltd. Is a specialized manufacturer of steel with research-manufacture-distribution system together, developed into a big manufacture and exporter of steel wire and nails.

Shandong Zhongxuan Metal Material Co., Ltd is a modern enterprise integrating production, processing and trade, and is a leading iron and steel enterprise group in China.

Specialist Alloys When Integrity Is Essential.

JiangSu Jinmingxin Metal Technology Co., Itd is a professional supplier of stainless steel materials, located in wuxi, China with high speed of economic development. We are near Shanghai port; The traffic is very convenient. The stainless steel materials sold are widely used in the fields of instruments, medical instruments, clocks, electronic medical treatment, energy and electric power, construction, mechanical hardware, automobile, decoration and so on.

Liaocheng Hengjiude Machinery Equipment Co., Ltd. is a comprehensive company integrating steel production, processing, trade, logistics and distribution. With international high-end technology, independent innovation intellectual property rights, professional high-tech enterprises. The company is located in Liaocheng City, Shandong Province, the largest steel pipe industrial base in China. Located in Shandong Province, known as "the holy land of Qilu and the state of rites", the location advantage is obvious and the transportation is convenient. The company has more than 110, 000 square meters of production and processing base, the full introduction of international advanced modern automated production and processing equipment.

Guangdong Haomei New Materials Co., Ltd. is a listed company in China, established in 1991 with stock code 002988. It is located in the Taiji Industrial Qingyuan City High tech Industrial Development Zone (near Guangzhou Baiyun Airport)

Shandong Liaocheng Xinruyi Steel Plant, built in year 2017 with registered capital of 30, 000, 000RMB, and we have been in the steel products industries for more than 15 years. The company is located in Liaocheng City, next to capital of Shandong Province, and it enjoy good transportation environment of 3 hours to nearest port and 1 hour reaching the airport.

ZHEJIANG ZHONG DING IRON AND STEEL Co., Ltd is a large-scale enterprise integrating production, sales and trade. The company now has 8 hot-rolling piercing production lines and 30 cold-rolling unit production lines, with a production range of 10mm-219mm, wall thickness 0.5mm-22mm, tolerance range of +-2 wire precision steel pipes, and an annual inventory of more than 8, 000 tons of precision bright tubes; Advanced There are 6 double-sided submerged arc welded spiral steel pipe production lines, which can produce double-sided submerged arc welded spiral steel pipes with a diameter of 219-3620mm and a wall thickness of 6-30mm. The annual production of spiral pipes is more than 200, 000 tons and is trusted by the majority of the industry.