* Dusha sare ee KINKOU-Silig Beryllium Copper Precision High (C17200).
waa siman, nadiif ah, dildilaac la'aan ah, diiray, duritaan, jiidid qallafsan, laalaab iyo ka mid noqoshada.
* Dusha sare ee siligga oo jaban waa mid cufan oo aan yarayn, porosity, delamination iyo ka mid noqoshada.
*Waxay buuxin kartaa shuruudaha dabaysha iyo dib-u-celinta, si joogto ah wax-soo-saarka iyo zinc plated.Dhexroorka wareeggu isma beddelo ka dib dib-u-soo-celinta joogtada ah, mana jiri doonto foorarsi, xoqid iyo laalaabkii fiilada.