Shanghai Zhenhua Port Machinery Co。,Ltd.(ZPMC) is a world-famous manufacturer of cranes and large steel structures.Its main products include:quayside container cranes,rubber—tyred gantry cranes(RTGs),bulk-material ship loaders and unloaders,bucket—wheel stackers and reclaimers,portal cranes,floating cranes engineering vessels and large steel bridge structures.So far, as per its order book,ZPMC has an outstanding supply record of 1000 quayside container cranes, 1650 RTGs and numerous non-standard large port machinery.According to the survey made by “World Cargo News” in England.ZPMC has had the largest order book for large container cranes during the last seven years.ZPMC designed and fabricated the first set of quayside container crane which can handle twin 40’containers with dual hoist in the world.The double trolley quayside container cranes fabricated by ZPMC are also taking leading position in the world.