... scaffolding coupler, double scaffold clamp, scaffod pipe clamp, scaffolding fixed clamp, beam clamps, scaffolding swivel clamp,single scaffold clamp, scaffolding joint clamp, fixed scaffold coupler, scaffold girder coupler ... is more safe and durable than the frame type scaffolding, while more flexible and easy-handling than the cuplock ... for further information.It'd be pleasure to talking with you.