... and the smooth surface,this chain may usually used in ringing equipment stainless steel link chain1).size:4MM 2). ... : hanging down,shopping basket,chain lock,lever block6)Standard:Japanese standard,Australia standard,DIN766,DIN763,DIN5685,Korean standard,American ASTM80,Nacm8 4/90 ... ,smooth surface8)Packing:gunny,plastic backet,carton,steel drunm with the gunny bag~~~ Japanese Standard link Chain