These fittings are meant to produce sturdy and trustworthy connections for various piping programs and to face up to the rigors of demanding environments. The black malleable iron fittings are ideal for gas and oil applications, whilst the galvanized iron fittings are ideal for non-potable water and out of doors https://erickhbtyu.answerblogs.com/38889440/detailed-notes-on-how-to-selecting-your-pipe-fittings