ASTM A182 F304 Yakacheneswa Hafu Nipples, ndedzipi ine imwe yekupedzisira tambo uye imwe yekupedzisira Weld. Chimwe chimiro chemapipi chakarukwa zvakakwana nipples yakazara, izvo zviri zviviri zvinopera needhora zvakare chine sipples, musiyano wakamanikidzwa kushandisa tambo, nepo sw nip nhandare kushandisa socket.