We producesquare steel bar by cold drawing through square mould from hot rolled steel round bar or hot rolled square steel bar. In this way, square steel bar has precision size tolerance, better surface and sharp corner radius. Except cold drawn square steel bar, we can also produce heat treated square steel bar. For example, annealed square steel bar, qhenched and tempered Q&T square steel bar. After heat treatment, you can get the proper square bar hardness according to your end usage. For heat treated square steel bar, straightness is very important. We have fine straightening machine to do straightening to keep good straightness.
Square Steel Bar,Steel Square Bar, Mild Steel Square Bar, Alloy Steel Square Bar, Cold Drawn Square Steel Bar,Cold Drawn Steel Square Bar SHANDONG LE REN SPECIAL STEEL CO., LTD. , https://www.js-luggagecarts.com
Applications:
Portable CO detector is an intrinsically safe and explosion-proof instrument and is designed to deter CO.
Portable CO detector is a low-cost, maintenance-free single gas monitor designed to protect personnel from dangerous CO gas exposure in the most extreme conditions. Despite its compact size, the portable CO detector includes features usually found only in larger multi-gas monitors including a large, OLED display, internal audible/visual alarms and simple push-button operation.
The monitor continuously displays ambient combustible gas readings and will alert the user when gas concentrations exceed the preset low or high levels. Added features include adjustable alarm setpoints, calibration gas values, and choice of text-only display selected by the user through a simple, push-button routine. Portable CO detector also has a peak/hold feature to show the highest reading during a shift and includes a special flip-cap calibration adapter for quick and simple calibration. It is covered by a two-year warranty from the date of manufacture.
It is used at the underground coal mine and mine safety inspection mainly. Certainly, it is also applied to fire fighting, confined space, chemical industry, oil and all kinds of environment that needed to measure the combustible gas.
Feature
Benefit
2-year warranty
Lowers the overall cost of ownership by providing a full 24 months of warranty coverage.
Weight of 102g
Light weight and compact size, can be worn on the belt, shirt pocket, coveralls or hard-hat.
Flip-cap calibration feature
Portable O 2  detector has a unique, built in calibration adapter to make calibration easy and eliminates the need to search for a calibration cup.
OLED display
Provides continuous display of the actual concentration of combustible gas  in the ambient environment as well as remaining battery life.
Adjustable low and high alarm setpoints
The user can configure Portable  O 2  detector r  to suit a number of different applications.
High visibility case
From a distance, it's color makes it easy for Safety Professionals to verify that workers are protected.
5 second delay shut-off protection
Portable O 2  detector  cannot be accidentally shut off since the on/off button must be depressed for five continuous seconds.
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   Technical specification: Â
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Sensors:
 Electrochemical sensors ( CO )
Range :
0~10000 ppm
Accuracy :
0.1%
Resolution :
0.1%
Power Source:
1500mAH Â lithium battery ; rechargeable battery
Temperature  Range :
-4°F  to 122°F (-20°C to 50°C) typical Â
Humidity  Range :
0 to 95% RH typical
Alarms:
Adjustable low and high alarm setpoints
Explosion protection
Exibd I
Protection grade
IP54
Dimensions:
 93mm × 49mm × 22mm
Weight:
102g
Applications:
Portable CO detector is an intrinsically safe and explosion-proof instrument and is designed to deter CO.
Portable CO detector is a low-cost, maintenance-free single gas monitor designed to protect personnel from dangerous CO gas exposure in the most extreme conditions. Despite its compact size, the portable CO detector includes features usually found only in larger multi-gas monitors including a large, OLED display, internal audible/visual alarms and simple push-button operation.
The monitor continuously displays ambient combustible gas readings and will alert the user when gas concentrations exceed the preset low or high levels. Added features include adjustable alarm setpoints, calibration gas values, and choice of text-only display selected by the user through a simple, push-button routine. Portable CO detector also has a peak/hold feature to show the highest reading during a shift and includes a special flip-cap calibration adapter for quick and simple calibration. It is covered by a two-year warranty from the date of manufacture.
It is used at the underground coal mine and mine safety inspection mainly. Certainly, it is also applied to fire fighting, confined space, chemical industry, oil and all kinds of environment that needed to measure the combustible gas.
Feature
Benefit
2-year warranty
Lowers the overall cost of ownership by providing a full 24 months of warranty coverage.
Weight of 102g
Light weight and compact size, can be worn on the belt, shirt pocket, coveralls or hard-hat.
Flip-cap calibration feature
Portable O 2  detector has a unique, built in calibration adapter to make calibration easy and eliminates the need to search for a calibration cup.
OLED display
Provides continuous display of the actual concentration of combustible gas  in the ambient environment as well as remaining battery life.
Adjustable low and high alarm setpoints
The user can configure Portable  O 2  detector r  to suit a number of different applications.
High visibility case
From a distance, it's color makes it easy for Safety Professionals to verify that workers are protected.
5 second delay shut-off protection
Portable O 2  detector  cannot be accidentally shut off since the on/off button must be depressed for five continuous seconds.
Â
   Technical specification: Â
Â
Sensors:
 Electrochemical sensors ( CO )
Range :
0~10000 ppm
Accuracy :
0.1%
Resolution :
0.1%
Power Source:
1500mAH Â lithium battery ; rechargeable battery
Temperature  Range :
-4°F  to 122°F (-20°C to 50°C) typical Â
Humidity  Range :
0 to 95% RH typical
Alarms:
Adjustable low and high alarm setpoints
Explosion protection
Exibd I
Protection grade
IP54
Dimensions:
 93mm × 49mm × 22mm
Weight:
102g
Model NO.: CTH10000
Temperature Range: 4 to 122f (-20°c to 50°c) Typical
Humidity Range: 0 to 95% Rh Typical
Alarms: Adjustable Low and High Alarm Setpoints
Explosion Protection: Exibd I
Protection Grade: IP54
Trademark: Topsky
Transport Package: Hard Plastic Case
Specification: SGS
Origin: Beijing China
HS Code: 9027100090
Model NO.: CTH10000
Temperature Range: 4 to 122f (-20°c to 50°c) Typical
Humidity Range: 0 to 95% Rh Typical
Alarms: Adjustable Low and High Alarm Setpoints
Explosion Protection: Exibd I
Protection Grade: IP54
Trademark: Topsky
Transport Package: Hard Plastic Case
Specification: SGS
Origin: Beijing China
HS Code: 9027100090