ตัวกรองผลการค้นหา
Fixed In Your Ways
You Reap What You Sow
Changing Your Tune
Doing As You're Told
Why Put Off Until Tomorrow What You Can Do Today
Fair And Fair Alike
If You Can't Stand The Heat, Get Out Of The Kitchen
When It Rains, It Pours
A Taste Of Your Own Medicine
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Boron Steels
แปลว่า(english) The addition of boron in the range 0.0005-0.005% to certain steels increases the hardenability. A range of boron steels is now listed in the current BS 970 and are widely used for the production of cold headed fastenings.
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