PMC 貴金屬粘土協會: –

People everywhere understand the benefits and pleasure of sharing their questions and enthusiasm. The PMC Guild is working with partners around the world to develop a network of regional Guilds that are dedicated to non-commercial support, technical advice and inspiration.

地區 網址:
USA 美國
Australia and New Zealand 澳洲和新西蘭
United Kingdom 英國

三菱Mitsubishi Materials Corp. Site: –