不锈钢内螺纹止回阀

h14h碳钢旋启式内螺纹止回阀

Y型弹簧内螺纹止回阀

不锈钢BSPT立式内螺纹止回阀

内螺纹止回阀

h14h-16/25p不锈钢内螺纹旋启式止回阀DN15-50

H11W-16/25p不锈钢内螺纹升降式止回阀DN15-50

H84F-6PY型快装单向阀/快装逆止阀/快装止逆阀3寸

H84F-6P卡箍挡板止回阀/快装逆止阀

H84F-6PY型快装挡板不锈钢止回阀DN65/2寸半

旋启式快装不锈钢止回阀Cr18Ni8/2寸

H84F-6P旋启式快装止回阀/不锈钢/卡箍/挡板