Calaamadaha taayirada waxay u baahan yihiin in laga keeno habka silsiladda saadka.
Maadaama ay tahay dhexdhexaadinta qaadista macluumaadka badeecada, waa in si sax ah loo gudbiyo macluumaadka muhiimka ah, aqoonsi hufan. Mararka qaarkood, tignoolajiyada chip elektarooniga ah ayaa sidoo kale ku lug leh.

Hordhac Codsiga
Waxay leedahay xabag saliideed sare leh oo aad bay u madhan tahay. Waxay sidoo kale ku habboon tahay dusha aan sinnayn, waxayna u adkaysataa caag taayir ah iyo jawi aad u daran.
Calaamadaha taayirka
Calaamadaha birta iyo aluminium;

Astaamaha
ku haboon dusha sare ee concave iyo convex;
iska caabinta cimilada wanaagsan;
Qadarka xabagta ayaa weyn oo taako sare

Faahfaahinta Alaabta
D2590 (filim Al PET ah oo cad oo dhalaalaya 25μm + caag taayir ah + 95g PEK cad)