J11B内螺纹氨用截止阀

J21B外螺纹氨用截止阀

J41B氨用明杆截止阀

J41B暗杆氨用截止阀

J41H高压蒸汽截止阀

FJ41H节流截止放空阀

YJ41F抗生素法兰截止阀

J44Y角式截止节流阀

J11W不绣钢内螺纹截止阀

WJ41H锻钢波纹管截止阀

WJ61H大连体波纹管截止阀

J61H锻钢焊接截止阀