哪位高手将下述英文美标译成中文国标(GB) 500DN X 300DN ECC REDUCER ASTM A420 GR.WPL6-W WELDED BW PER ASME B16.9 SCH20(L) X SCH30(S) 40DN FLANGE A350-LF2 CL.1 ASME-CL150 LAP-JOINT FLANGE PER ASME B16.5 U5/8 X 170MM BOLT & NUT A193-B7 A194-2H STUD W/2HVY-HEX-NUTS UNIF ASME-B1.1, 170MM BOLT LENGTH Flanged Armored Hose, 80mm, 150 LB, Design Pressure FV/10 barg, +/- 5 meter long Knife Valve, 100 mm, 150 LB, CAST IRON BODY ＆304 SS GATE 4.0INCH, LEVER OPERATOR 1.0mm2 x 1 Pair, PE/OSCR/PE/SWA/PVC cable