... ? Answer : Yes. All our activities are certificated by ISO and API, we have many regular customers in many countries and regions ... ”),609.6mm(24”)660.4mm(26”)Available models: Steel tooth(IADC)111, 121,131117,124,126,127,136,137 216,217 ... , 227211,311TCI(IADC)415,435, 417,437515,525,535,545, 517,527,537,547615,625,635,,617,627 ...