we stock internal ring gear, which is widely used in different industrial applications. the raw materials used in the fabrication of internal ring gear is inclusive of ms or alloy steel, carbon steel as per astm, bs, is, aisi, sae, etc. we can also offer internal ring gear in customized form. further, we can easily handle bulk orders for internal ring gear without any hesitation. payment terms : l/c, d/a, d/p, t/t, western union