Since 1987, Chang Chun has been conducting independent R&D on manufacturing technologies for copper foil. Mass production of copper foil began in 1988, and production plants were setup in both Miaoli, Taiwan and in Changshu, Jiangsu province, China. Full range of specifications and sizes were developed for high-tech ......
More→gamma-Butyrolactone (GBL) is a solvent with high-boiling point. Its advantages of good solubility, dielectric property, and stability make it suitable as an extractant, dispersant, and dyeing auxiliaries. GBL is also an important intermediate for organic synthesis and can be used in fields such as ......
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