... terms:T/T, L/C are acceptable.Lead Time for MOQ: Within 3 days after deposit or valid L/ ... order our products: Order by E-mail:send the order with detailed description to our Email, you can find our ... and regions who are trading or drilling contractors. We have very good reputation in drilling field.Available sizes: 60mm,65mm,76mm ... ,627,637,737512,522,532,612,622,632,732Roller bit, roller cone bit