急求管件高手指点

Pipe. 3/4'' S/40S SMLS, ASTM A312 Gr. TP304, BE x 6m long 1 Lgth 中的BE x 6m long 1 Lgth是什么意思？ Plug, 3/4'' 6000 THRD, SQ. HD, ASTM A105 18 Ea??中的SQ.HD什么意思？ Coupling full: 1 1/2'' FNPT, 3000 THRD, A105?中FNPT？ Angle bar 75x75x9mm thk x 6m long, A572 (Taiwan shape) 1 Lgth 3/4" U-bolt M6 c/w 04 hex nuts and 02 washers, A307, Gal'v 18 Set C-channel 100 x 50 x 5mm thk x 9.36 kg/m x 6m long, , A572 (Taiwan shape) 3 Lgth Grounding Lug, ilsco - type "ssps-8" copper, for 1-4/0 awg (or equivalent) 12 E 急。。。。请高手指点！小弟先行谢过。