I am looking for manufacturers of italian chalices, monstrances,
ciborium, candlesticks in brass, gold and silver.  Many such products
are produced in italy for church use.

Hello archangel58

I've compiled this list for you, and hope you'll find it useful.

"Fratelli Mollica is an Italian company that since 1964 has been
specialized in the hand-maded production of ecclesiastical items in
various metal, including gold and sterling silver."
http://www.fratellimollica.it/inglese/thefirm.htm

"Ars Caeli is a leading firm from Milan, born at the beginning of the
fifties, in the silversmith and gold-smith district, in Ripa Ticinese
n. 55 and is a world-wide assurance for the production of vestments
and vessels."
http://www.desta.it/arscaeli/eng/index2.htm

"Since 1880, year of its foundation, Felli spa is producing religious
articles in metalware."
http://www.felli.it/I_chisiamo.htm

Fratelli Lissi
http://www.fratellilissi.com/home.htm

"Napoletana Arte Sacra s.n.c. is an artisan factory for vessels for
church ceremonies."
http://www.napoletanaartesacra.com/English/products.htm

Lavorazione Arredi Sacri Gallo di Angelo e Armando Gallo snc 
http://www.arredisacrigallo.it/frcatalogo.htm

Bottega Artigiana Segatel
http://www.segatel.it/catalogo.html

Braggio
http://www.braggio.it/produzione.htm

Luc di Nocerino
http://www.lucdinocerino.com/arredisacri.htm

GHO Ferruccio
http://www.paginegialle.it/pg/cgi/pgms.cgi?ct=3&cc=491249092&cl=1&iq=000212487203001801000871&cb=0

ELLE-CI di LISSI M. & C. snc
http://www.paginegialle.it/pg/cgi/pgms.cgi?ct=3&cc=297733406&cl=1&iq=000212487203001801000871&cb=0


The next few are companies which seem to manufacture only some of the
products they sell.

Gruppo Liturgico
http://www.gruppoliturgico.com/prod.ing.html

ALDO BOVE E FIGLI SNC
http://www.aldobove.it/english.html

Arte Sacra (click on "arredi")
http://www.arte-sacra.it/index.html

Oscar Arredi Sacri
http://www.oscararredisacri.it/

Ferrari-Arrighetti
http://www.ferrari-arrighetti.com/


I'll explain the most successful searches I used. You may find a few
more companies worth contacting to establish whether or not they're
actually manufacturers.

Google searches:

calici pissidi
://www.google.co.uk/search?hl=en&ie=UTF-8&q=CALICI+pissidi&btnG=Search&meta=

fabbrica "arredi sacri"
://www.google.co.uk/search?hl=en&ie=UTF-8&q=fabbrica+%22arredi+sacri%22&btnG=Search&meta=

candelieri tabernacoli
://www.google.co.uk/search?hl=en&ie=UTF-8&q=candelieri+tabernacoli&btnG=Search&meta=

Yellow Pages:

There are 154 companies listed under "religious goods" 
http://www.paginegialle.it/pg/cgi/pgbrowse.cgi?lv=4&ps=5&vco=001206000&vcc=000875100&cb=0&l=2

and more than 200 in the Italian version, "articoli religiosi"
http://www.paginegialle.it/pg/cgi/pgbrowse.cgi?lv=4&ps=5&l=1&vco=001206000&vcc=000875100

Many of these are shops selling medallions, rosaries, statues etc. but
you can try, as I did, using search words like "produzione"
(production - 37 results) and calice (chalice - 33 results) to focus
on companies of interest to you.

You can do the same with "arredi sacri" (church furnishings). This
time the companies you may want are mixed in with suppliers of
vestments and icons, and with non-Italian companies.
http://www.paginegialle.it/pg/cgi/pgbrowse.cgi?lv=4&ps=5&l=1&vco=000301000&vcc=009417200

Google's language tools will provide rough translations of Italian text:
://www.google.co.uk/language_tools?hl=en

This site is useful for translating individual Italian words into English:
http://wordreference.com/

I hope this answer will be helpful, but please don't hesitate to ask
for clarification if you have any queries.

Best wishes - Leli

Excellent work. Just what I needed.  I will use this service many times.