球阀 闸阀 截止阀
Q41F-16p/c一体式法兰球阀
Q41F-16P DN15--DN30不锈钢国标球阀
Z41W-16P DN15-DN500不锈钢闸阀
J41W-16C DN15--DN300不锈钢截止阀
H44H-16P不锈钢止回阀