MINIATURE NON RETURN VALVE, QC or DC PLUG, QC or DC SOCKET, QC or DC ADAPTOR, NUT, SS TUBE 1 by 8 inches OD x 0. 028 inches, FABRICATION AND SUPPLY OF MOLECULAR SIEVE FILTER ASSEMBLY, FABRICATION AND SUPPLY OF DIAPHRAGM PYRO VALVE, 316 L VIM- VAR MICRO- FIT UNION TEE 1 by 8 inches OD SC- 11 CLEANED