Allian steel group

In 1996, Hunan Allianz Metal company established
In 2004, Shanghai precision seamless tube factory established.
In 2014, We create brand of Ronsco.
In 2018, Huzhou conical seamless pipe factory established.
In 2020, Huzhou nickel alloy tube factory established.
In 2022, Wuxi ronsco new material technologies company established.
In 2025, planned to set up a provincial and national R&D center for special metal new materials.

After 27 years of sustainable development, it has become a technical, industrial and trading group company. The group has a very professional R&D team, three factories producing precision steel tubes, capillary tubes, profiled tubes and nickel alloys tubes. Our products has been sold to more than 80 countries and regions, enjoying a good name in the market.

Precision seamless tube factory

Main facilities
CR mill: 12 sets
CD machine: 13 sets

Main products

C type or spiral type bourdon tube
Precision thin wall seamless tube
Super bright master tube for EP
Precision capillary seamless tube

Advantages

Nearly 20 years of Bourdon tube production experience, the technical level is second to none in China, designated supporting manufacturer of BK and Wika.
The WT to OD ratio of thin-walled tube can reach 1.0%.
For EP master tube, ID roughness can reach Ra0.20um.
The OD of capillary tube can reach 0.20mm.

Size ranges

Bourdon tube: build to spec. or drawing
Seamless tube: OD3.0 ~ 31.8mm
Capillary tube: OD0.20 ~ 5.90mm

Seamless conic pipe factory

The company is an enterprise with independent R&D and innovation ability.The company created the world`s leading intelligent rotary rolling seamless conic pipe production process, self-made equipment subverts the traditional process, established enterprise and industry standards, and declared and obtained a number of national invention and utility model patents

The company has advanced equipment for comprehensive inspection and analysis of metal materials, has a strict and sound quality management system. We have established the conic pipe research center in cooperation with Zhejiang Mechanical and Electrical Vocational Technical College and other research institutions, which has in-depth research on the process, application and equipment and manufacturing of conic pipe.

Wuxi Ronsco New Material Technologies Company Downloads

Ronsco - Model 41 - High Temperature Alloy - Brochure