1 We are providing customized products by developing fine chemical products based on silicone, such as silane, silane coupling agent, silicone intermediate, silicone compound, UV stabilizer of new concept, industrial primer, etc.2  Our company will do our best to develop and provide customer-oriented products in the future.ELCOME TO DAMIPOLYCHEM. 1  We are providing customized products by developing fine chemical products based on silicone, such as silane, silane coupling agent, silicone intermediate, silicone compound, UV stabilizer of new concept, industrial primer, etc.
A collapsed backbone is a type of network structure or configuration that is sometimes used in the creation of local area networks or LANs.The configuration often includes the use of switching or routing hubs as part of the overall design, with a central point of origin providing the feed for all the hubs. collapsed backbone is a type of network structure or configuration that is sometimes used in the creation of local area networks or LANs.
In practical terms, a tier 1 network is one of the few networks that are large enough that they do not need to pay other tier 1 networks in order to use their networks, and charge smaller networks for access to their network. A tier 1 network is not to be confused with a T-1 line. The Tier 1 networks, in combination, form the backbone of the internet. They are large enough to support peering agreements amongst themselves, so internet traffic can go across any of their networks. Whenever possible, though, a Tier 1âs own network traffic has the highest priority on its own network.