... . Our Advantages and Strength1. The steel material supplied by Kehai is from the most famous steel company in china and the world. The ... . The shell of the tank is also made of manganese steel so it is solid and durable.2. We have the ... set of machine ran in 1996 in Africa, we have exported to Canada, Iran, Myanmar, Kazakhstan, North Korea, Indonesia, South Africa, West Africa etc. It is ...