釜盖 | 5 开口釜盖,DN200, 1x45/40(CN) ,3x45/40,1xDN60(SN-45°) | 8 开口釜盖,DN300,1x45/40(CN) ,4x45/40,2x29/32, 1xDN100(SN-45° ) | 8 开口釜盖,DN300, 1x45/40(CN) ,4x45/40,2x29/32,1xDN100(SN-45° ) | 8 开口釜盖,DN300, 1x45/40(CN) ,4x45/40,2x29/32,1xDN100(SN-45° ) | 8 开口釜盖,DN400, 1x45/40(CN) ,4x45/40(SN) 2x29/32(SN), 1xDN100(SN-45° ) | 8 开口釜盖,DN400, 1x45/40(CN) ,4x45/40(SN) 2x29/32(SN), 1xDN100(SN-45° ) |