(wopanga maunyolo ozungulira zitsulo)
Maunyolo a G-213 Round pin nangula amakwaniritsa zofunikira za Federal Specification RR-C-271F Type IVA, Grade A, Class 1, kupatulapo zomwe zikufunika kwa kontrakitala.
Maunyolo a G-210 Screw pin chain amakwaniritsa zofunikira za Federal Specification RR-C-271F, Type IVB, Grade A, Class 2, kupatulapo zomwe zikufunika kwa kontrakitala.
Maunyolo a G-209 Screw pin nangula amakwaniritsa zofunikira za Federal Specification RR-C-271F Type IVA, Grade A, Class 2, kupatulapo zomwe zikufunika kwa kontrakitala.