As the name implies, the black hole can only enter. The black hole MAC address means that the client sends a message to the switch or router. The switch or router receives the information, not only does not forward, nor returns the corresponding information, so the loop is solved by this principle. Such as H3C, Huawei, CISCO equipment are supported.
SC serial Construction Hoist (Construction Elevator)with single cage and twin cage to the customers, the capacity ranges from 1000kg,1200kg, 2000kg,2700kg,3200kg, and with direct motor driven and frequency conversion driven to reach the lower speed of 36 m/min, middle speed 0-63m/min and high speed 0-96m/min. And also provide the different dimension of cage to satisfy the special demand from the customers.
Hoist Parts,Construction Hoist Parts,Tower Crane Section,Potain Standard Section
Jinan Shanghangda Machinery Co., Ltd. , http://www.shdtowercrane.com