YJ41H氧气截止阀

y型截止阀

J11W-(16-64)C,P,R内螺纹截止阀

J11H、Y-150Lb内螺纹锻钢截止阀节流阀

KJ41F不锈钢抗生素截止阀

J41W/H/Y-150Lb不锈钢美标法兰截止阀

DJ41F/Y-25P不锈钢低温长颈法兰截止阀

J41W-16P-不锈钢法兰截止阀

J11W-16P 不锈钢内螺纹S型丝扣截止阀