H44H/Y旋启式高压止回阀 止回阀

H12H/H14H内螺纹止回阀 止回阀

H11T/W内螺纹铸铁止回阀 止回阀

H41Y轴流式止回阀 止回阀

CKH743H液动式快速关闭止回阀 止回阀

H11Y/H61Y内螺纹与承插焊锻钢止回阀 止回阀

H41Y法兰锻钢止回阀 止回阀

BH41W夹套保温止回阀 止回阀

DH44Y低温旋启式止回阀 止回阀

H72H对夹立式止回阀 止回阀

H72W/Y对夹式高压止回阀 止回阀

ANSI、API美标旋启式止回阀 止回阀