... steel Gasket:NBR,PU,PTFE Part:VK,MK,VB,MB TW coupling MKTankwagon coupling DIN28450Stainless steel>> VK5011/2, VK50, VK80, VK100 ... mainly supply camlock couplings (cam & groove quick couplings), guillemin coupling, TW coupling, Bauer type coupling, chicago coupling, Ground joint coupling, sandblast ... clamp, double bolt clamp, whipcheck safety cable, washdown gun, etc. TW coupling MK