求助解释！！！

有一些管子和管件的词看不懂，哪位能给解释一下，谢谢！！
Brass Stop cocks F-F BSP threaded end DR AS 371 LN2385
Brass Hose cock male BSP threaded end (DRAS3719LN2386)
sockets G.M.I x BSP threaded
sockets reducing G.M.I BSP threaded
sockets G.M.I x BSP threaded
Bush reducing G.M.I M-F BSP threaded
Tee equal all female G.M.I BSP
Hex Nipple G.M.I BSP
Plug G.M.I BSP threaded
Barrel Union G.M.I F-F BSP
Seal Tape (thread tape)