sand casting scaffold couplers scaffolding accessories swivel couplers standard: various, as per buyer's requirements We can supply various sandcasting scaffolding couplers and other accessories.Standard:ANSI, BS, DIN, JIS & etc.Material:Aluminium, Brass, Carbon steel, Stainless steel, Alloy metal & etc. Equipment:CNC lathe, processing center, miller, grinder, punching machine & etc. Tel:0086-411 ...