Nanjing Liskon Biological Technology Co.,Ltd.

Since 1953 we produce highly porous sintered materials at our site in Dortmund. Our many years of varied experience in the processing of PE (SIPERM® HP), Stainless Steel (SIPERM® R) and Bronze (SIPERM® B) to highly porous plates, pipes, molded parts

Callahan Company was founded in August of 1958 by James B. Callahan, Sr. Over the years, the company has grown to its present size of $100+ million in annual revenue. Family owned and operated since inception, the company services virtually every che

Alcoa is the world's leading producer and manager of primary aluminum, fabricated aluminum and alumina facilities, and is active in all major aspects of the industry. Alcoa serves the aerospace, automotive, packaging, building and construction, comme