Two knuckle boom marine cranes ordered by our regular Australia client were being tested on 10th May. These two knuckle boom marine cranes were designed in accordance with lifting appliances on boards and offshore units of BV. The cranes were designed with lifting capacity 3 tons at 9 meters. As soon as the cranes were adjust to its best performance, we would make an appointment with our client and BV classification society for FAT. Each of the Haoyo's product must be certificated before delivering to clients.