Seek pipeline specifications – Technical standards for epoxy coal tar pitch anti-corrosion coating on buried steel pipelines
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Only the 1996 version was found; I’m looking for the latest version from 2014. Does anyone among you have an electronic copy? Please help
Ah, it’s quite an old technique – things like three oils and two layers of fabric, or five oils and three layers of fabric. When applying this technique, one must pay close attention; otherwise, everything will deteriorate within a few years