Heat sink is a kind of heat dissipation device which is easy to heat down electronic components in electrical appliances. Most of them are made of aluminum alloy, brass or bronze, sheet shape, multi-sheet and so on. In general, the heat sink should be coated with heat conduction silicone grease on the contact surface between the electronic element and the heat sink, so that the heat emitted by the components can be transmitted to the heat sink more effectively and then distributed into the surrounding air through the heat sink. Heat Sink,Cooled Heat Sink,Aluminum Heat Sinks,Water Cooling Plate Heat Sink Dongguan Formal Precision Metal Parts Co,. Ltd , https://www.formalmetal.com
Welded &Â Seamless Square and Rectangular Steel Tube
Sharp Corner & Radius Corner Square and Rectangular  Steel Tube  Â
SIZE:
SHSÂ 20x20mm-800x800mm
RHS 20x30mm-400x800mm
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Steel Grade:
* Q235B , Q345B/C/D/E,Q460,SPA-H,Q450NQR1
*Â S235JR,S275JR,S355JR ,S355J0,S355J2
*Â STK490 STK400,SS400
*Â C250,C350,C350L0
* Gr.A.B/C/D  , Â
*Â S304 ,S316L etc.
Surface:Â
Hot Dipped Galvanized, Black,Painted,Oiled,Sand Blasting etc.
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Standards
DIN EN 10210Â (Europe)Â Â
--Hot finished structural hollow sections of non-alloy and fine grain steels
DIN EN 10219Â (Europe)Â
--Cold formed welded structural hollow sections of non- alloy and fine grain steels
ASTM A500Â (American)Â
--Cold formed structural Circular sections and special sections (welded/seamless)
GB/T 3094-2000 (China)
--Cold drawn forming steel tube
GB/T 6728-2002(China)
--Cold formed structural hollow sections
JISG 3466(Japan)
--Carbon steel square pipes for general structural purposes
AS 1163Â (Australia)
--Structural Steel Hollow Sections
Technology
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Certifications
CE EN10210-1:2006
CE EN10219-1:2006
CE EN10204.3.1Â Â Â
CE EN10204.3.2
ISO9001:2008
FPC
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Application
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Heavy Steel Structural,Aerospace EngineeringÂ
High-Speed Rail , Ship Building , MachineryÂ
Cars and High-Speed Trains Â
Lashing Bridge,ship steel structuralÂ
Green House  ,Glass Curtain Wall
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Contact
Lily Zhao /Sales Manager
 Mobile: +86-158 5416 0308
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Model NO.: 20*20mm-600*600mm
Main Product: Welded and Seamless Steel Square Tube
Technical: ERW, Hot Finished, Extruded, Galvanized
Certificate: ISO 9001 En 10210 En10219 FPC
Marerial: Welded, Seamless, Galvanized, Stainless
Standards: A513 A500 En10210 En10219 Jisg3466 As1163 Gbt6728
Steel Grade: S235jr S275jr S355jr S355j0 S355j2 C250 C350 Ss400
Application: Glass Curtain Wall, Steel Structural, Machinery
Trademark: JiNan Xin JiYuan Special section tube
Transport Package: in Bundles
Specification: 20x20mm-600x600mm
Origin: Jinan City, Shandong Province, China
HS Code: 73066100
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