SHANGHAI, May 18 (SMM) - The domestic commodity futures closed with decline during the day. In the metal sector, SHFE tin, SHFE zinc, SHFE lead and SHFE nickel declined by 3.91%, 1.22%, 1% and 0.61% respectively. Both SHFE aluminium and SHFE copper declined by 0.42%. In terms of ferrous metals, the Iron ore fell by 5.27%, the rebar and stainless steel fell by about 3% and HRC fell by over 2%. The coke fell by 4.72% and coking coal fell by 4.07%.