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English Translations » 信息处理 » Differences between L290 and L290MB

Differences between L290 and L290MB

2009-03-13View Original

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What is the difference between the L290 and the L290MB? :handshake
Reply #22009-03-15
The L290 should be produced in accordance with the GB9711.1 quality standards; it is a high-quality non-alloy steel that has been normalized. L290MB is produced in accordance with the GB9711.2 quality standard; it is a high-quality non-alloy steel that has undergone strain heat treatment.
Reply #32012-04-01
I’ve encountered this problem too; I would appreciate it if someone with more experience could help me figure it out. Lift it up

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Translated at 2026-07-28 03:33:30

Original: https://bbs.hcbbs.com/thread-414963-1-1.html

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