How many pits does Shanghai Zhenhua Heavy Industry have?

No pit. Before Shanghai Zhenhua Heavy Industry, the main products were port machinery, and the output and export volume of wharf shoreline were the highest in the world, and the working conditions were really poor, which was a problem of regular companies. Shanghai Zhenhua Heavy Industry (Group) Co., Ltd. (formerly known as Shanghai Zhenhua Port Machinery (Group) Co., Ltd., hereinafter referred to as ZPMC) is a well-known enterprise in heavy equipment manufacturing.