BEVEL – The angle formed between the prepared edge of the end of the pipe and a plane perpendicular to the surface. Standard line pipe bevel is 30 degrees. BILLET – Round, solid bar of steel which is pierced to form a seamless tube or pipe.BLK – Black – Term used when O.D. surface of pipe is protected with a varnish-type oil.. SafePlumbing's extensive glossary is full of.
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