Even though visually "bumpy," the exterior of Ductile iron pipe, should you slide your hand alongside the floor, feels rather smooth - like a golf ball �?texture vs. really feel. That's as the texture applied is fully purposeful and proprietary to each DI pipe manufacturer. Down below are other #IronStrong https://edwinrcms26936.develop-blog.com/34501155/how-to-check-the-ph-of-a-glass-lined-reactor