The Backplate, a plate, normally made from chrome steel, from time to time aluminium or carbon fibre composite, that's held against the diver's back again through the harness, also to which the diver's Major cylinder or cylinders are connected. Aracın teknik olarak two hundred metreye kadar basınca dayanma özelliği bulunduğunu https://ugzhnkchr.ru/user/testbun0/