Awwa C207 Class B/D/E/F Table 2/3/4/5/6/7 Forged Steel Flange Cdfl519

Awwa C207 Class B/D/E/F Table 2/3/4/5/6/7 Forged Steel Flange Cdfl519

A circular groove is opened in the middle of the two flanges, the metal ring is placed in, the two flanges are hit hard, and the flange is hard connected.