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Domestic ferrosilicon standard (GB2277-87)
（自己参考内容自行创作）
The national standard GB2277-87 Silicon Iron was formulated by the State Bureau of Quality and Technical Supervision (now the General Administration of Quality Supervision, Inspection and Quarantine) in October 1987 and promulgated on January 8, 1988. The implementation dat......
1038 
Sophie
China Rebar Steel No.
Chinas reinforcing steel is among the worlds leading steel products, with excellent mechanical and chemical properties, exceptional welding performance, and reliable corrosion resistance. Its mechanical properties are also suitable for a variety of applications.
The most commonly used reinforcing......
Shoulder steel wire for internal combustion engine (YB/T5185-1993)
Internal Combustion Engine Support Wire (YB/T5185-1993)
To ensure high quality performance, safety, and durability for internal combustion engines, there is a need for specialized wire to provide support to important parts and components. This is where internal combustion engine support wires com......
drawing
Existentialism
Existentialism is a philosophical movement that began in the mid-19th century and became popular in the late 20th century. The term “existentialism” was coined by the French philosopher Jean-Paul Sartre in the 1940s, but the movement had already been taking shape for some time be......
Permissible deviation of surface shape and size of hot-rolled ribbed steel bars (GB 1499-1998)
Steel ribbed hot rolling belt surface shape and size tolerances (GB 1499-1998)
The steel ribbed data belt produced by hot rolling production technology has the characteristics of high strength, good plasticity and weldability. In order to ensure the quality requirements of steel ribbed belt and i......
Length and allowable deviation of hot-rolled ribbed steel bars (GB 1499-1998)
GB 1499-1998 Hot Rolled Ribbed Steel Bars Length and Tolerance
Steel is an important construction material and one of the most commonly used building products. Hot rolled ribbed steel bars are one of the most commonly used steel products for reinforcing concrete structures. GB 1499-1998 Hot Rolle......
Hot-rolled L-shaped steel (GB 9946-1988)
Hot Rolled L-shaped Steel
Hot rolled L-shaped steel belongs to the category of rolled steel shaped sections, which are products shaped by pressing metal billets into desired shapes. L-shaped steel cross section has been widely used in steel structures, bridges, ships, boilers, pressure vessels an......
GB/T 3414-1994 Hot-rolled special-shaped steel for coal machinery
GB/T 3414-1994 Hot-rolled special steels for coal mining machinery
This Standard specifies requirements, test methods, inspection rules, packaging, marking and quality certificate for the hot-rolled special steel used for coal mining machinery. This Standard applies to hot-rolled special steel of......
Commonly used terms in steel pipe standards
Introduction
Steel was first developed in the late 1800s, and continued to grow in popularity over time. In recent years, steel pipes have become popular due to their versatility, durability, and cost-effectiveness. Today, steel pipes are instrumental in many types of construction and manufacturin......
Extruded copper pipe GB 1528–87
1. Introduction
Copper tubes are widely used in a variety of industries due to their properties of having thermal and electrical conductivity, hardness and corrosion resistance. Due to this, the manufacturing process and quality control of copper tubes are of great importance. Copper tubes can be......
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