Sling round chuan a contact surface zawng zawngah load weight a sem darh a, load pianzia nen a inmil a, soft, continuous band ang maiin a awm a ni. Chain sling hian metal link hrang hrang hmangin load a transfer a, discrete contact point-ah force a concentrate a ni.
Sling round tak chu load-bearing core of synthetic yarn hmanga siam a ni a, chu chu pawn lam sleeve hmanga ven a ni. Design thenkhatah chuan pawn lam cover hnuaiah inner signal warning sleeve sen a awm bawk . He mechanism hi hmuh theiha chhinchhiahna angin a thawk a: pawn lam sleeve a chhiat a, a chhung lam sleeve sen a hmuh theih chuan protective barrier chu a chhe tawh tih a hriattir a, load-bearing core chu a tichhe thei tih a hriattir a ni.
A chhanna chu sling material-ah a innghat. Standard polyester leh polyamide round slings te hi EN 1492-2 hnuaiah 100°C (212°F) thlenga lumna atana rate a ni a, polypropylene slings erawh 80°C (176°F) thlenga tihkhawtlai a ni thung.
Sling zungbun chu a label-ah expiry date stamp-in a lo thleng lo—mahse, chu chuan chatuan atan a daih tihna a ni lo. EN 1492-2 ang chuan European standard for roundslings, working load limit (WLL) leh safety factor te chu tarlan a ni a, mahse service life chu hman dan tak takah a innghat thung. Thil siamtu thenkhat chuan a hman hmasak ber atanga kum 10 chhunga dam rei ber tur chu dinhmun tha takah an tarlang.