The 25 g buttons produced were melted twice using a current of 300 amp, and were held molten for at least 1 min during each cycle. The buttons were homogenized in vacuum at 1,000° C for 24 h and ...

Mini chainsaws, which are made for pruning and other small jobs, feature a one-handed design with a small cutting bar–4- to 8 ... With a 20-inch bar, this is a professional-duty saw capable ...