Radiator tembaga dan Aluminium STL-80

The philosophy of 12 roots create St. Lawrence Radiator
1) The root of devices in St. Lawrence Radiator
ST28/35A CNC drilling machine make drilling and flanging work together. Automatic hydraulic pipe expander makes copper and aluminum connect closer.
2) The root of materials in St. Lawrence Radiator
Steel pipe: Quality cold rolled extra-low carbon steel. Each pipe is test under infra-red detection and 2.0MPa pressure.
Copper pipe: Using TP2 type electrolytic copper tube in special. It is High purity, impurity-free, strong plasticity type and more suit to the bimetal radiator.
3) The root of welding in St. Lawrence Radiator
Firstly, using the ultrasound pre-welding point positioning. Then use "automatic laser control" welding technology. It can avoid steel pipe butt errors and make welding area more uniform without welding slag. The thickness of the welded parts is several times than the pipe.
4) The root of pre-processing in St. Lawrence Radiator
After deoiling--water scrubbing-- acidic derusting--neutralization-- surface conditioning_phosphating_passivation and other process in DIP tank, the phosphating film of high corrosion resistance and adhesion is formed. It is 3-5mg/m2.
5) The root of corrosion protection in St. Lawrence Radiator
Using deep-sea second-generation nano-double-layer anti-corrosion technology. Chemical coating: It is composed by Flake zinc particles and Chromium oxide compound Physical coating: It is coated by resin coating compounds to cover the whole surface for corrosion protection.
6) The root of spray coating in St. Lawrence Radiator
The world's top spray coating equipment makes the surface smooth as your phone. The dedicated plastic powder and double spray coating make the surface more exquisite. "Never shed off, never fade" is our promise.
7) The root of accessories in St. Lawrence Radiator
All accessories are produced together with corresponding radiators. So they have no colour difference and are suit to the radiators. All air vent & tapping bush and end plug is made of 103G copper.
8) The root of package in St. Lawrence Radiator
According to the common European packaging standards, the four-layer packaging is put to use to avoid flooding and bump at large. The inlayer package is plastic film, the second layer is pure air bubble film, the third is reinforced corrugated carton, and the outside layer is wooden pallet.
9) The root of checkout in St. Lawrence Radiator
There are four pressure tests to pursue zero defects. Single-chip welding finished, assembling and welding finished, pre-processing finished and before packing, the test will be done. Every test must be done under 2.0 MPa.
10) The root of management in St. Lawrence Radiator
The quality management software and infra-eye is used in produces. Each set radiator has its own special encode in system. The reason will be found within few minutes when the quality question poses.
11) The root of after-service in St. Lawrence Radiator
If any quality problem happens, the new radiator will be sent to you for free soon. Long life service and 10-year warranty let you see our confidence and attitude.
12) The root of warranty in St. Lawrence Radiator
For steel series, they have a 10-year warranty; For copper & aluminum series, they have a 20-year warranty. We are the first factory who submits 10-year warranty in steel and 20-year warranty.

As a professional manufacturer and exporter, we are in the field of radiators for home heating for more than 30 years in China. Our radiators mainly include steel column radiator, copper-aluminum radiator, towel radiator, design radiator and so on.
We always have a faith "Try the most, do the best", we sincerely hope our products can meet your demands. If there is any requirement, please feel free to contact Leo Tseng of Beijing Saint Lawrence Radiator Manufacturing Co., Ltd. Many thanks and Best Regards.