发明申请
US20150330745A1 PROTECTIVE DEVICE 审中-公开
保护装置

PROTECTIVE DEVICE
摘要:
Described is a protecting device comprising a first internal resistant layer (2) made from a steel having a failure load equal to or greater than 30,000 kg/cm2 and perfectly elastic between 0 and at least 10,000 kg/cm', and at least one second layer (3) made from polymeric material.
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