JY41N-25/40暗杆截止阀

J641N/H-25气动程控截止阀

JY41N-25日式截止阀

QDY421FQDY421F 紧急切断阀，液氨切断阀

QDQ421F-25QDQ421气动紧急切断阀

J641N/H-25J641N/H-25气动程控截止阀

车用紧急切断阀

嘉仕达氨用截止阀JY41F液氨暗杆截止阀

J41F永嘉氨用截止阀J41F明杆截止阀

JY41F-25P DN50嘉仕达生产不锈钢氨用截止阀JY41F暗杆截止阀

J41F DN50J41F明杆氨用截止阀

JY41N氨用截止阀,液化气暗杆截止阀