Precautions during the casting process of grooved pipe connection fittings

1. Whether the surface of the semi-rough is smooth and flawless. If these problems exist, it is very easy to scratch off the spray paint on the surface during use.
2. Check whether there are holes in the semi-rough parts. This is an important point in the quality inspection of grooved pipe fittings, and it is also a difficult point. We have no way to check some very small places, which has caused quality problems.
3. After purchasing semi-finished products, we will set up an incoming inspection department in our factory to check all semi-finished products from beginning to end. This will greatly improve the quality of our grooved pipe fittings