Galvanized concrete serrated steel grating are anti-corrosive, resisting to acid and alkali.  Lightweight, great load-bearing capacity, on-slip and safe,  installation,  being economical of materials,being sturdy and durable, ventilation,  easy to clean and attractive appearance.
Steel Grating Specification
| No. | Item | Description |
| 1 | Bearing Bar | 25x3, 25x4, 25x4.5, 25x5, 30x3, 30x4, 30x4.5, 30x5, 32x5, 40x5, 50x5, 65x5, 75x6, 75x10---100x10mm etc; I bar: 25x5x3, 30x5x3, 32x5x3, 40x5x3 etc US standard: 1''x3/16'', 1 1/4''x3/16'', 1 1/2''x3/16'', 1''x1/4'', 1 1/4''x1/4'', 1 1/2''x1/4'', 1''x1/8'', 1 1/4''x1/8'', 1 1/2''x1/8'' etc |
| 2 | Bearing Bar Pitch | 12.5, 15, 20, 23.85, 25, 30, 30.16, 30.3, 32.5, 34.3, 35, 38.1, 40, 41.25, 60, 80mm etc US standard: 19-w-4, 15-w-4, 11-w-4, 19-w-2, 15-w-2 etc.  |
| 3 | Twisted Cross Bar Pitch | 38.1, 50, 60, 76, 80, 100, 101.6, 120mm, 2'' & 4'' etc                          |
| 4 | Material Grade | ASTM A36, A1011, A569, Q235, S275JR, SS304, Mild steel & Low carbon steel, etc |
| 5 | Surface Treatment | Black, self color, hot dip galvanized, painted, spray coating  |
| 6 | Grating Style | Plain / Smooth, Serrated /teeth, I bar, serrated I bar                             |
| 7 | Standard | China: YB/T 4001.1-2007, USA: ANSI/NAAMM(MBG531-88), UK: BS4592-1987,  Australia: AS1657-1985, Japan:JIS     |
Steel grating picture
Steel grating package with bundle then plastic film outside
Company Info
Mini piston vacuum pumps are small-sized pumps that are designed to create a vacuum in various applications. These pumps are typically used in laboratory experiments, medical devices, and other industrial applications that require a small amount of vacuum. They are also commonly used in vacuum packaging machines, vacuum conveyors, and vacuum elevators. There are different types of mini piston vacuum pumps available in the market, including diaphragm, rotary vane, and piston pumps. Piston pumps are the most common type of Mini Vacuum Pump and are known for their high pumping speed and vacuum level. They are also highly reliable and durable, making them a popular choice for many applications. Electric mini piston vacuum pumps are the most common and are powered by an electric motor. In addition, mini piston vacuum pumps can be classified based on their flow rate, vacuum level, and pressure range. The flow rate refers to the amount of air that the pump can move per unit of time, while the vacuum level refers to the degree of vacuum that the pump can create. The pressure range refers to the range of pressures that the pump can handle, from atmospheric pressure to high vacuum. Overall, mini piston vacuum pumps are versatile and widely used in various applications due to their compact size, high pumping speed and reliability.
Mini Piston Vacuum Pump,12V Mini Diaphragm Vacuum Pump,Mini Air Vacuum Pump,Piston Type Vacuum Pump
Shenzhen DYX Technology Co.,Limited , https://www.dyxpump.com