480青铜止回阀H14W-16T

428黄铜法兰消声止回阀H42X-16T

425黄铜止回阀H12X-16T

420黄铜水表止回阀H32X-16T

416黄铜升降式缓闭止回阀H41W-16T消声型

415黄铜消声止回阀H72X-16T

414黄铜手动放水阀J11X-16T

410黄铜立式止回阀H12X-16T

409黄铜法兰止回阀H44W-16T

404黄铜焊接止回阀H64W-16T

401黄铜止回阀H14W-16T

401a黄铜止回阀H14X-16T