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This EPDM O-ring is black in color, round in cross-section, has a durometer of 70A, and is designed for use in a wide variety of sealing applications.
EPDM is acceptable for temperature applications between -70 degrees F (-57 degrees C) to 300 degrees F (149 degrees C). It is compatible for use with water and steam, silicone oil and grease, polar solvents (alcohols), acids, glycol-based brake fluids, ozone, and weathering. It is vulnerable to many oils, gasoline, and solvents. This material meets ASTM International standards.
This EPDM O-ring has a shore durometer of 70A. Shore durometer is the hardness of a material, and its resistance to permanent indentation. A higher durometer value indicates greater resistance to indentation on a scale of 0 to 100, with 100 indicating no indentation.
O-rings commonly provide a pressure and fluid seal between cylindrically shaped, overlapping mating surfaces and are commonly seen in engines, faucets, flanges, valves, and various cylinders. They are circular in shape, with a round cross section and a hole in the center, similar to a doughnut. O-rings are available in various sizes, and can be ordered based on required nominal inside diameter (ID), outer diameter (OD), and cross-sectional (CS) diameter.
This EPDM O-ring meets standards defined by Aerospace Standard AS568A, which is the Aerospace Size Standard for O-rings.

Large necklace with two positions, long or choker crossed.
The piece is a dipped in metal old silver plated ring and measures 6'3 cm (2'48'') in diameter, with a suede cord in grey, brown or khaki. Cord length is 45 cm (17'7''), ending in double noose, separated by a dipped in silver metal ball. Total length of necklace is 51’3 cm (20’19'').
The product is sent by registered mail in a bubble envelope. The national delivery time is 7 to 10 days, rest of Europe from 10 to 15 days and to America and Asia from 15 to 20 days.
By making a purachase, indicate the size and the color cordon in the message field.
___________________________________________________

Collar largo con dos posiciones, largo o cruzado en gargantilla.
El colgante es un aro de metal banado en plata vieja y mide 6'3 cm (2'48'') de diametro.
El cordon es de ante en color gris, marron o kaki.
La longitud del cordon es de 45 cm (17'72''), terminando en doble nudo corredizo, separado por una bola de metal plateada.
La longitud total del collar es de 51'3 cm (20'19'').
El producto se envia por correo certificado en un sobre de burbujas. El tiempo de entrega nacional es de 7 a 10 dias, a Europa de 10 a 15 dias, America y Asia de 15 a 20 dias.
Al hacer la compra indicanos el color del cordon y la talla escogidos en el campo mensaje.
ship to: cost: with another item:
Spain 3'00€ ($4'00USD) 0'75€ ($1'00USD)
Everywhere Else 4'50€ ($6'00USD) 0'75€ ($1.00USD)

Large necklace with two positions, long or choker crossed.
The piece is a dipped in metal old silver plated ring and measures 6'3 cm (2'48'') in diameter, with a suede cord in grey, brown or khaki. Cord length is 45 cm (17'7''), ending in double noose, separated by a dipped in silver metal ball. Total length of necklace is 51’3 cm (20’19'').
The product is sent by registered mail in a bubble envelope. The national delivery time is 7 to 10 days, rest of Europe from 10 to 15 days and to America and Asia from 15 to 20 days.
By making a purachase, indicate the size and the color cordon in the message field.
__________________________________________________

Collar largo con dos posiciones, largo o cruzado en gargantilla.
El colgante es un aro de metal banado en plata vieja y mide 6'3 cm (2'48'') de diametro.
El cordon es de ante en color gris, marron o kaki.
La longitud del cordon es de 45 cm (17'72''), terminando en doble nudo corredizo, separado por una bola de metal plateada.
La longitud total del collar es de 51'3 cm (20'19'').
El producto se envia por correo certificado en un sobre de burbujas. El tiempo de entrega nacional es de 7 a 10 dias, a Europa de 10 a 15 dias, America y Asia de 15 a 20 dias.
Al hacer la compra indicanos el color del cordon y la talla escogidos en el campo mensaje.
ship to: cost: with another item:
Spain 3'00€ ($4'00USD) 0'75€ ($1'00USD)
Everywhere Else 4'50€ ($6'00USD) 0'75€ ($1.00USD)

AAA (Authentication, Authorization, Accounting) describes a framework for intelligently controlling access to network resources, enforcing policies, and providing the information necessary to bill for services.
AAA and Network Security for Mobile Access is an invaluable guide to the AAA concepts and framework, including its protocols Diameter and Radius. The authors give an overview of established and emerging standards for the provision of secure network access for mobile users while providing the basic design concepts and motivations.
AAA and Network Security for Mobile Access:
Covers trust, i.e., authentication and security key management for fixed and mobile users, and various approaches to trust establishment.
Discusses public key infrastructures and provides practical tips on certificates management.
Introduces Diameter, a state-of-the-art AAA protocol designed to meet today’s reliability, security and robustness requirements, and examines Diameter-Mobile IP interactions.
Explains RADIUS (Remote Authentication Dial-In User Services) and its latest extensions.
Details EAP (Extensible Authentication Protocol) in-depth, giving a protocol overview, and covering EAP-XXX authentication methods as well as use of EAP in 802 networks.
Describes IP mobility protocols including IP level mobility management, its security and optimizations, and latest IETF seamless mobility protocols.
Includes a chapter describing the details of Mobile IP and AAA interaction, illustrating Diameter Mobile IP applications and the process used in CDMA2000.
Contains a section on security and AAA issues to support roaming, discussing a variety of options for operator co-existence, including an overview of Liberty Alliance.
This text will provide researchers in academia and industry, network security engineers, managers, developers and planners, as well as graduate students, with an accessible explanation of the standards fundamental to secure mobile access.