GB/T 553-2012 锚链涂漆和标志 Painting and marking of chain cablesGB/T 554-2008 带缆桩 BollardsGB/T 584-2008 船用法兰铸钢截止阀 Marine cast steel flanged stop valvesGB/T 585-2008 船用法兰铸钢截止止回阀 Marine cast steel flanged stop check valvesGB/T 587-2008 船用法兰青铜截止阀 Marine ...