The selection of breeding geese requires the recording of egg production information to correspond to the identity of the breeding geese.However, due to the special physiological characteristics of breeding geese, manual recording in practice can affect the egg-laying performance of breeding geese and can also lead to problems of missing and confus

ract The mould flux is a mixture of non-metallic oxides that, in contact with liquid steel melts, becomes a liquid slag which the mainly function is to lubricate and control heat transfer between mould and strand during the continuous casting process.The mould flux without fluoride has the advantage of decreasing the wear ACCESSORIES of machine and