“MACH NAME: SMALL HATCH COVER WATERTIGHT MANHOLE COVERS;
MODEL: CB/T 3728-1995;
MAKER: JIANGSU NEW HATONG SHIP HEACY INDUSTRY CO. LTD” SMALL HATCH COVER WATERTIGHT MANHOLE COVERS OPENING/CLOSING INTERNAL MECHANISM JIANGSU HANTONG.CB/T 3728-1995.NA