Wathu 3mm 3.2mm 3.7mm umodzi pachimake mphuno waya ulibe malekezero osweka ndi mfundo. Iwo wadutsa SGS muyezo chitsimikizo mayiko. Ili ndi zoteteza chilengedwe cha ROHS, imafikira osakhala poizoni, kukana kupindika ndi zina zambiri. Zatumizidwa kumayiko opitilira khumi monga Canada ndi Germany.

Wathu waya wamkati wapakati wa 4mm alibe malekezero osweka ndi mfundo. Iwo wadutsa SGS muyezo chitsimikizo mayiko. Ili ndi zoteteza chilengedwe cha ROHS, imafikira osakhala poizoni, kukana kupindika ndi zina zambiri. Zatumizidwa kumayiko opitilira khumi monga Canada ndi Germany.

Zingwe zazingwe zam'mphuno za 4mm zimatha kusinthasintha madigiri a 360, kupindika mosasunthika, mawonekedwe abwino. Zatumizidwa kumayiko opitilira khumi monga Canada ndi Germany.