... , to the north is the Yellow River. complete infrastructure, advanced telecommunications, transport facilities, in fact, outstanding and excelelent place ... , pumps, compressors, fans and other piping systemsbr> [Media]:Common type used to transport -15 to 120 centigrade, of air, compressed ... air, water, sea water, oil, acid and alkali. Special type used to transport -30 to 250 centigrade of the medium ...