| 摘要 |
<p>The strap has three adjacent longitudinal rows of links (MB,MC) offset from one another and connected by transverse passages (114). Each of links in strap is comprised of several friction surfaces in which some of surfaces are made of a material having hardness greater than 800 HV. The friction surface of links is made of materials selected among zirconia-based material, ceramic, ceramic composite, amorphous carbon, nickel-free stainless steel, cobalt alloy, gold, gold alloy, titanium, titanium alloy, platinum, platinum alloy, platinoid and platinoid alloy.</p> |
