Sturdy, Stainless api 5ct buttress thread casing for ...
buttress thread casing 1. product we can offer : api couplings for casings api couplings for tubing short thread -casing couplings (stc) external upset end - tubing couplings (eue) long thread - casing couplings (ltc) non upset end tubing - couplings (nue) buttress thread - casing couplings (btc) coupling pipe grade identification by colour 2.
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