Search results for keyword: highway
GB 50251-94 Code for Design of Gas Transmission Pipeline Engineering
Gas Pipeline Engineering Design Specification
This specification provides the necessary information for the design of gas pipeline engineering projects. The relevant safety regulations, design codes and standards, pipeline characteristics information, and cost estimates (including related enginee......
1023 
Sophia
GB 6567.2-86 Graphical symbols for piping systems
Today, graphical symbols for piping systems are seen everywhere, from public and private buildings to highways and industrial complexes. Piping systems are a key part of the modern world, and without an effective system in place, no construction project can be completed.
Graphical symbols for pip......
GB/T 19240—2003 Installation Requirements for Special Devices for Compressed Natural Gas Vehicles
Installation Requirements for Compressed Natural Gas Automobile Special Device (GB/T 19240-2003)
1.General Provisions
This article provides installation requirements and instructions for compressed natural gas (CNG) vehicle-mounted special device. This article applies to mobile and fixed type de......
QC/T 245-2002 Technical Specifications for Special Devices for Compressed Natural Gas Vehicles
Safety Requirement for Compressed Natural Gas (CNG) Vehicle Dedicated Devices
As a type of gaseous fuel, compressed natural gas (CNG) has gradually become an important substitute for traditional fuels such as gasoline, diesel and liquefied petroleum gas (LPG). CNG has low pollutant emissions, les......
Common legal units of measurement
Metric units are units of measurement that use the international system of units (also known as the metric system). Common metric units include grams for mass, meters for length, and liters for volume.
Grams measure mass, which is the measurement of the amount of matter in an object. Grams are us......
single coordinate measuring machine
Theodolite is an essential equipment for surveying and mapping, and it is widely used in different fields. It is mainly used for measuring horizontal, vertical or slope distance and angle direction surveying of railway and highway engineering, geological engineering, building engineering and surve......
Configuration and Development of Key Machinery in highway Mechanized Maintenance
Introduction
Road machinery maintenance is a very important measure to ensure road safety, especially the mechanical maintenance. It is the key to the successful implementation of road machinery maintenance. The mechanical configuration and development of road machinery maintenance are the basis ......
Chromium Phosphating Technical Standards for Aluminum and Aluminum Alloys
Aluminum and Aluminum Alloy Chromophoretic Coating Technology Standards
Aluminum and aluminum alloy chromophoretic coatings are widely used in a variety of fields due to their excellent performance and decorative properties. The production process of the chromophoretic coating is an electrochemic......
Development and application of thermal spraying technology in foreign countries
Foreign hot spraying Technology Development and Application
Abstract: Hot spraying is a relatively new coating technology。 It has unique advantages, such as high coating efficiency, high coating quality and good adhesion. It has been widely used in aerospace and automobile industries. This paper......
non-transferred arc
Non-Transit Arc
As the world evolves, modern transportation has improved significantly, allowing people to travel from one place to the next with greater ease. In the past, long-distance travel was restricted to roads, sea and air, but today there are many more options. The non-transit arc helps ......
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