1) The Quality Of Our Products
Our pressure gauges are all 100% inspected, and follow a strict production process to ensure quality and reliability.
2) Price
We offer high-quality products at competitive prices, making them ideal for both small and large orders.
3) OEM Services
With years of experience, we have successfully fulfilled OEM and ODM orders from well-known companies worldwide.
4) Delivery
We ensure timely delivery, and some standard models are available for immediate shipment.
5) Service
We provide excellent after-sales service to support our customers and build long-term partnerships.
6) Reputation
We have earned the best reputation and positive feedback from customers around the world.
Blackboards are an essential tool in many classrooms, providing a surface for teachers to write notes, equations, and other information for students to see. While the use of blackboards has been largely replaced by digital whiteboards and other high-tech tools in some schools, they are still a common and effective teaching aid in many parts of the world. Steel Blackboard,Raw Material Blackboard,Blackboard Steel Coil,Writing Board Steel Sheet Wuxi Shengshu Metal Co., Ltd. , https://www.wuxissmetal.com
Size:
2.5", 80mm
Pressure Range:
0-120 psi overpressure 300 psi, 0-500 psi, 0-250 psi overpressure 500 psi, 0-800 psi
Connection:
Brass; 1/8 NPT
Bourdon Tube:
Phosphor Bronze
Movement:
Brass
Case:
ABS, Painted Red or Blue Steel
Window (Lens):
Polycarbonate plastic
Pointer and Dial:
Aluminum
Accuracy:
3-2-3%, 1.6%
Ambient Temperature:
66oC (150oF) max
* Professional recommendation & personalized specification.
* OEM/ODM order welcomed.
* Please feel free to contact us.
Samples are available, please contact with our Sales Representative.
* Other related models for your reference
WHY US?
We may accept consumer orders with special requirements for instruments and meters!
About Huazan Instruments Co., Ltd.
Huazan Instruments Co., Ltd. is a professional manufacturer of pressure gauges. Located in the east economic development zone of Yuyao City, Ningbo Zhejiang, China. Since its establishment in 2010, the company has developed hundreds of pressure gauge models. We have also obtained the ISO9001-2008 certificate through continuous efforts.
Our Products and Services:
General pressure gauges, stainless steel pressure gauges, refrigerant air conditioning pressure gauges, and shock-resistant liquid-filled pressure gauges are among our ongoing products. We aim to provide high-quality, reliable, and cost-effective solutions to our global customers.
In addition, we supply spare parts for pressure gauges. We own one of the largest case factories in China, offering a wide range of stainless steel, steel, and copper cases. Custom stamping parts, CNC metal parts, and custom plastic parts are also available.
Contact Us:
If you are interested in any of our products, feel free to reach out. We are committed to providing top-quality products and competitive pricing. We would greatly appreciate the opportunity to demonstrate our services and products, as we look forward to building long-term and stable business relationships with you.
As I mentioned earlier, blackboards are typically made from synthetic materials like porcelain enamel or laminate, which are more durable and easier to clean than stone. Steel is sometimes used as a base material for blackboards, but it is coated with a layer of porcelain enamel to create a smooth, non-porous writing surface.
Porcelain enamel is a type of glass that is fused onto the steel surface at high temperatures. This creates a hard, smooth surface that is resistant to scratches, stains, and other types of damage. The porcelain enamel coating also gives the blackboard its characteristic dark color, which provides a high contrast for writing with chalk or markers.
In addition to the traditional blackboard, there are also other types of writing surfaces used in classrooms, such as whiteboards, smartboards, and chalkboards. These surfaces may be made from a variety of materials, including glass, enamel, and plastic, and they may be electronic or non-electronic.
Overall, the use of blackboards and other writing surfaces in schools has evolved over time, but they remain an important part of the classroom experience for many students and teachers.
Model NO.: HZ
Connection Type: Radial Direction
Installation Structure: Convex
Features of Measurement Medium: General Pressure Gauge
Indicating Pressure Reference: General Pressure Gauge
Size: 2.5 Inches
Pressure Range: 120 / 500 psi
Case: Plastic
Lens: Twist Polycarbonate Lens
Connection: 1/8 NPT Male
Mount Method: Bottom Mount
Trademark: OEM
Transport Package: Individual Packing or Bulk Packing
Specification: Customized
Origin: Ningbo
HS Code: 9026209000
SPECIFICATIONS: