(9) Zanglamaydigan po'lat, uglerod po'lati, galvanizli varaq, alyuminiy, mis uchun payvandlash...
(10) Murakkab choklar va turli xil qurilmalarni payvandlash uchun mos keladi: Tugmali payvandlash, lap payvandlash, tikuv payvandlash, tirnoq payvandlash, qisish payvandlash, T-payvandlash, stakka lap payvandlash, birlashtiruvchi chekka payvandlash