The history of safes dates back to the Middle Ages. In the medieval paintings, occasionally a wooden cabinet containing gold, silver and jewelry was seen. This is the prototype of a modern safe.
For the French luxury cabinet manufacturer FICHE-BAUCHE imitation of the 18th century, the Louis Vuitton fifteenth century wooden gold jewelry rich wooden safe. Such safes resemble furniture, without special locks, and are less safe. Until the beginning of the 19th century 200 years ago, with the growth of the social economy, the safe industry began to develop. In Europe, there are specialized lock manufacturers.
In 1818, the British CHUBB company was founded (CHUBB has become the industry leader in the safe industry in the 21st century). In 1825, the French company FICHE-BAUCHE was founded... These manufacturers then began manufacturing safes. The material of the safe has been changed from wood to a variety of solid metals, but it is basically based on splicing techniques or integral castings that use woodware. Both the appearance and craftsmanship are similar to the furniture at that time, and the precision of locks is not high.
According to the research report on the safe market, the lock industry in the late 1950s was not yet developed. Although the appearance of the safe changed with each passing day, there was no major development in the precision and reliability of locks. In the late 1960s, Americans invented the lock mechanism and multi-lock technology used in safes. The safety performance of safes has greatly improved.
In the 1960s and 70s of the 20th century, with the rapid development of semiconductor technology, the industry developed an electronic code lock, which is also widely used in various types of safe products. Afterwards, the LED and LCD digital displays were used in safes. The user's demand for fire protection also spawned various types of fire protection products. The development of fingerprint scanning and identification technology promoted the use of fingerprint locks in safes, and the popularity of magnetic cards led to magnetic cards. The type of safe... The types of safes are developed from the simplest features of the day to anti-theft, fire, anti-theft/fire, anti-magnetic, home, commercial, hotel, firearm, file/data, etc. .
Various high-tech security technologies have been continuously developed, and the corresponding cracking technologies have also been continuously developed. Users are increasingly inclined to select safes that are safer and have better protection of property. As a result, the safe industry continues to develop, with face recognition and automatic opening. Cameras, networked alarm safes, and more, more secure products.
Want to learn more about the knowledge of the safe, all in the Chinese safe exchange network.
1.Specification: Various size as
customer's requirements
2.Material:A6063,A6061,A3003 and other series alu
alloy
3.Suface treatment: anodizing ,polishing,turning ,power coating,mill finish etc
4.Design:OEM,ODM,or design by ourselves
5.Equipment: CNC ,extruding machine,cold drawn machine,heating
oven,straigtening machine,cutting machine
|
OD |
OD Tolerance |
ID Tolerance |
Roundness |
straightness |
Circular run-out |
|
φ16-20 |
±0.02 |
±0.02 |
0.01↓ |
0.015↓ |
0.05↓ |
|
φ20-30 |
±0.02 |
±0.02 |
0.01↓ |
0.015↓ |
0.05↓ |
|
φ30-50 |
±0.05 |
±0.05 |
0.02↓ |
0.020↓ |
0.08↓ |
|
φ50-80 |
±0.15 |
±0.10 |
0.05↓ |
0.025↓ |
0.10↓ |
6. STANDARD PACKING :Wooden case/carton
7. OPTIONAL PACKING: Polyfoam interleave inside, wooden case
Trade Terms
1. Payment: 30% T/T in advance, 70% balance pay before delivery. L/C at
sight.
2. Delivery time: 20 days after deposit receiverd. If opening mould, plus
7-10 days.
3. Trade Term can be chosen depending on your requirements.
4. FOB Port: Shanghai
Aluminum Alloy Extrusion Tube
Aluminum Alloy Extrusion Tube,Aluminum Extrusion Tube,Aluminium Extrusion Tube,Aluminium Alloy Extrusion Tube
Changzhou YiFei Machinery Co., Ltd. , https://www.yifeialu.com