http://wenku.baidu.com/view/cdde7806a417866fb94a8e63
http://wenku.baidu.com/view/d3f93e857c1cfad6195fa780
http://wenku.baidu.com/view/53708d6f59eef8c75fbfb382
http://wenku.baidu.com/view/c7b2c9b6998fcc22bcd10de9
http://wenku.baidu.com/view/668cbb50482fb4daa48d4b4c
磷化钢丝绳技术，锰系磷化涂层有效抑制微动疲劳，从而使用寿命超长
