...crete with MFA of high AMF contents 低强度等级泵送高石粉机制砂混凝土的研究 Low-Alloy High-Strength Steel 低合金高强度钢 low-pressure type bursting-strength tester 低压冲裂强度测定仪 ..
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High Strength Low Alloy Steel 高强度低合金钢 ; 低合金高强度钢 ; 镀锌钢板
low-alloy high-strength steel Q420 Q420低合金高强钢
low-alloy high-strength steel q 420 q低合金高强钢
high-strength low-alloy steel 高强度低合金钢
high-strength low alloy steel 高强低合金钢
low alloy ultra-high strength steel 低合金超高强度钢
High strength low-alloy steel 低合金高强度钢
The quality of resistance spot welding of low carbon steel and high strength low alloy steel is studied by looking into the dynamic voltage characteristics of the electrodes.
本文通过对电阻点焊电极电压动态特性的分析，研究了低碳钢及低合金高强度钢电阻点焊的质量问题。
For welding low-alloy and high strength steel with corresponding strength grade.
用于相同强度等级的低合金高强钢的焊接。
There are four broad classifications of steel: carbon steels, alloy steels, high-strength low-alloy steels and stainless steels.
钢材大致可分为四类：炭素钢，合金钢，高强度低合金钢和不锈钢。
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