-Why choose protaper engine with SS and Niti material?

ss cut well but broken by easy way; Niti cannot cut well but not easy to broken;

this new material is mixed with function of ss and flexibility of Niti

- What dealer purchase it from Lingchen?

New items in the market--who moves faster, he will be the winner

Name: Sophie Zhu

Mail: 200 at 

Mob.: 86 13326461806

What's upp/ viber:0086 13724820746

Skype: lingchentrading

QQ:1508167175