Kusuntha kwa singano sikudalira chitsanzo cha pini chokwanira pazinthu zoterezi, ndipo zina zoyeserera zimakhazikika mkati mwa 4 mil. Manja osunthika amatengera muyeso wa mphamvu.

Kuthamanga koyenera ndi njira yofunika posankha tester.while tesse yoyeserera imatha kuyesa malo oyeserera a singano nthawi imodzi. Sitima (1991) idalongosola kuti njirayi ndi chisankho chabwino kwa opanga mabwalo opanga magesi otsika, ngakhale opanga ma board apamwamba kwambiri, ngakhale opanga masitepe osunthika a Pinch kuti muchepetse.

Zoyeserera za Plate, pali zida zoperekera zoyeserera (Lea, 1990). 1.3mm.

Kwa chiwongolero chambiri, cholumikizira chimapangidwa kukhala wamkulu kuposa 0.7mm.if. Kufikira kwachuma.Ano
Magawo atatu otsatirawa nthawi zambiri amachitika:
1) Tsamba lodziwika bwino;
2) Kuzindikira pa intaneti;
3) Kuzindikira.
Woyesa wamkulu wa General angagwiritsidwe ntchito kuona mtundu wa kalembedwe komanso mtundu wa bolodi ya madera komanso njira zapadera.
Zingwe zachitsulo wamba ndizo:
Mtovu
Chitsulo

Makulidwe nthawi zambiri amakhala pakati pa 5 ndi 15 cm
Chiwonetsero cha Admin-tin-Copper Copper)
Ndiye kuti, wogulitsira, nthawi zambiri 5 mpaka 25 m wakuda, wokhala ndi zomwe zalembedwa pafupifupi 63%

golide: Nthawi zambiri imangokwezedwa pamanja

Siliva: Nthawi zambiri imangokwezedwa pa mawonekedwe, kapena lonse lilinso la siliva