Manual Breakout Tongs for Drilling Machine
Commonly used shackles in the market,according to the prdouction standards are generally divided in to GB,American standard, Japanese standard;
According to the type can be divided into bow-type(omega-shaped),bow-type with mother with shackles and D-type(U or straight type),D with mother shackles; According to use place can be divided into the marine and land type.
Safety coefficient has 4 times,5 times,6 times and 8 times(such as Sweden GUNNEBO super shackles).
The material, commonly are carbon steel,alloy steel,stainless steel,high strength steel and so on.
Surface treatment is generally divided into galvanized(hot galvanized and electroplate galvanized),painting,Dacormet
