Briefly, these key points made PARA MILL's milling head' product life cycle reaches more than 30 years, even milling head 30 years ago still remains in a machining duty status. ... PARA MILL PRECISION MACHINERY CO., LTD. No.30, Ln. 568, Erkan Rd., Waipu Dist., Taichung City 438, Taiwan. TEL: 886-4-2680-0678. FAX: 886-4-2680-0587.