Ronsco is an explorer of precision products of special metal materials under the new trend of new materials, new technology, new application and new challenging environment in the 21st century.

As a high-tech metal material company in the modern and future context, corporate culture is the soul, human is the brain of the enterprise, hardcore technology is the heart, innovation ability is the blood, product is to spread hope, service is the nerve antenna to let the enterprise dissolve into the market.

For precision capillary seamless tube, extra thin wall thickness seamless tubes, micro ID and heavy wall tubes, and other special seamless tubes of special metal materials, we have been focusing on them for decades.

Precision Capillary Seamless Tube

Capillary tube is a special, precise and high-quality round metal tube made by fine rolling and fine drawing. It usually refers to the tube under OD6.0mm. It is divided into capillary seamless tube and capillary welded and cold drawn tube. Generally speaking, compared with welding cold-drawn tube, capillary seamless tube has higher and stricter requirements on manufacturing conditions, process, detection, inspection, performance, shape and dimensional accuracy control, and is more suitable for high-end, precision and harsh conditions of the application.

Ultra Thin Wall Seamless Tube

Thin wall & ultra thin wall seamless tube refer to the ratio of wall thickness and outer diameter less than 6% seamless tube. They are generally formed by intermediate annealing and multi-pass cold rolling of two or three high mills. Small outer diameter can be obtained by reducing the wall drawing process. According to customer’s special surface requirements, the tubes can be polished by different processes.

Micro ID Thick Wall Seamless Tube

Micro ID thick wall seamless tube is a small caliber non-standard tube. It is generally made by finishing rolling, fine drawing or other special processes, with distinctive features of high bearing capacity and high strength, suitable for gas transmission, oil transmission or other special purposes which usually have high internal pressure and high strength.

Precision Conical Seamless Tube

At present, most of the conical tubes on the market are welded tube, heat expansion tube or extruded tube. Welded conical tube is made by CNC precision cutting and cold pressing of metal sheet. Seamless conical steel pipe is a conical hollow round pipe with different diameters at both ends made of seamless steel pipe as raw material.

HP/UHP Bright Tube

HP/UHP BA+ tube generally refers to BA tube, EP tube and MP tube, mainly used in pure gas and liquid pipeline system with high clean and ultra-pure requirements, to ensure the high purity and stability of transmission medium. Due to semiconductors, integrated circuits, Biological pharmacy, food and beverage, laboratory, fine chemical industry and automobile industry having strict requirements on the work environment of ultra clean, high reliability and resistance to corrosion and so on, so the pure medium (gas and liquid) pipeline generally emphasize surface roughness and cleanliness, to suppress the particle generation and accumulation retention.

Profiled Seamless Tube

Special-shaped steel pipe refers to the steel pipe with other cross section shapes besides the round pipe, including seamless pipe and welded pipe. According to the different shape and size of steel pipe section, special-shaped steel pipe can be divided into non-circular cross-sectional profile, equal wall thickness, variable wall thickness, variable diameter and wall thickness along the length direction, symmetrical and asymmetric cross-section one.