... , out ring +two ring inserts+ball, out ring +liner(PTFE/DU)+ball, out ring +injection+ballRod end:body+ball, body ... +two ring inserts+ball, body+liner(PTFE/DU)+ball, body+injection+ball, body+radial spherical plain ... bronze plate attached thin bronze wire net impregnated with PTFE powder), PTFE liner (fabric with PTFE powder)Out ring: carbon steel, alloy steel, stainless ...