Zhang Min [Dezhong], the original mine Huanglongshan No. 4 shaft bottom tank Clear, 200cc Zhang Min [Dezhong], the original mine Huanglongshan No. 4 shaft bottom tank Clear, 200cc Zhang Min [Dezhong], the original mine Huanglongshan No. 4 shaft bottom tank Clear, 200cc Zhang Min [Dezhong], the original mine Huanglongshan No. 4 shaft bottom tank Clear, 200cc Zhang Min [Dezhong], the original mine Huanglongshan No. 4 shaft bottom tank Clear, 200cc