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Our machinery are devided into categories by fabrication process, including steel plate cutting, drilling, assembly, welding, straightening, shot blasting, painting etc.
Cutting Machine
Cut steel plate into beams
Assembly Machine
Assemble steel beam into T or H/I shape
Welding Machine
Weld H/T/I beam or other carbon steel workpiece
Straightening Machine
Staighten H/T/I beam after welding process
Shot Blasting Machine
H/T/I beam surface treatment using our shot blasting machine
Painting Machine
Painting solution for H/T/I beam after shot blasting process
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Semi Automatic Production Line

All-in-One Machine

All-in-One Machine Classic Version

All-in-One Machine Pioneer Version

All-in-One Machine Elite Version

All-in-One Machine Legacy Version

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6-Axis Welding Robot

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Hight Heat

Home BlogPosts tagged "Hight Heat"

Welding of Common Chinese Structural Steels: Q235 (GB/T 700) vs Q345 (GB/T 1591) – Complete Practical Guide with International Equivalents (ASTM, EN, JIS)

Knowledge

December 12, 2025

Welding of Common Chinese Structural Steels: Q235 (GB/T 700) vs Q345 (GB/T 1591) – Complete Practical Guide with International Equivalents (ASTM, EN, JIS)

Q235 vs Q345 welding guide: preheat, filler metals, heat input, PWHT & international equivalents [...]

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ZMDE Steel Machinery integrates R&D, manufacturing, sales, and service, with expertise in intelligent H/T beam constructural production line and machines, Industry IoT, and control systems.
Shanghai Heaedquarter: 999 Yunjuan Road, China (Shanghai) Pilot Free Trade Zone Lin-gang Special Area, Shanghai China
Shandong Base: 3888 Yinda Road, Weifang City, Shandong China
Email: export.zmde@zmdetech.com
Tel: +86 131 6226 6595 (WeChat)
+86 180 0536 5092 (Marketing WhatsApp)
+86 185 2178 3568 (Sales WhatsApp)

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Select your desired machines by Machinery Category

Cutting Machine

Assembly Machine

Welding Machine

Straightening Machine

Shot Blasting Machine

Painting Machine

Hight Heat

Welding of Common Chinese Structural Steels: Q235 (GB/T 700) vs Q345 (GB/T 1591) – Complete Practical Guide with International Equivalents (ASTM, EN, JIS)

Machinery

Fabrication Solutions

Information

More