... . aluminum material 2. size: 1/2"-6" 3. Thread: BSP OR NPT E Type Aluminum camlock coupling(cam and groove quick coupling ... . Specification of our camlock coupling: 1/2"-8"4. Camlock Type: A, B, C, D, DC, DP, E, F5. Body material ... couplings)8. Sealing Material: NBR, EPDM, Vitom, PTFE evelope gasket9. Thread of Our Camlock: NPT OR BSP E Type aluminum camlock coupling