A105国标内螺纹旋启式止回阀H14H-100(重型)
F11国标内螺纹旋启式止回阀H14H-100(中型)
A105国标焊接法兰旋启式止回阀H44H-16(中型)
A105国标承插焊旋启式止回阀H64H-250(重型)
A105国标承插焊旋启式止回阀H64H-100(中型)
A105国标焊接法兰旋启式止回阀H44H-16(重型)
A105国标对焊旋启式止回阀H64H-100(重型)
A105国标对焊旋启式止回阀H64H-100(中型)
A105国标内螺纹旋启式止回阀H14H-250(重型)
A105国标对焊旋启式止回阀H64H-250(重型)
A105国标内螺纹旋启式止回阀H14H-100(中型)
F316国标承插焊旋启式止回阀H64H-100(中型)
F316美标焊接法兰止回阀H44H-900LB(重型)
A105国标焊接法兰旋启式止回阀H44H-25(中型)
F11国标承插焊旋启式止回阀H64H-100(中型)
F11国标承插焊旋启式止回阀H64H-100(重型)
F304国标承插焊旋启式止回阀H64H-100(中型)
F304国标承插焊旋启式止回阀H64H-100(重型)
F304国标焊接法兰旋启式止回阀H44H-100(重型)
F304国标焊接法兰旋启式止回阀H44H-64(重型)