Why choose fortified outer revolving wheel lock
Secure and durable for fortified
Different |
Fortified |
Common |
“HONGSHENG” |
Material |
alloy steel and heat treatment |
carton steel,not heat treatment |
Fortified wheel lock will be safe and durable |
Mechanical property |
8-12.9 grade |
6-8.8 grade |
|
Durable year |
3-5 years |
1 year |
|
Key matching |
4+2 all of locks and key are best |
4+1 all of them are common,and only one key,if lost,it will be trouble |
HONGSHENG keys can be match for life,each has keep file |
Best anti-theft for outer revolving sleeve
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