Gasoline prices at gas stations in the second week of March rose 97.6 won from the previous week to 1,861.6 won per liter. Although the average price for a week did not exceed 1,900 won, the price in the second half of the week in Seoul exceeded 2,00…
N-type conductive tin sulfide films for environmentally friendly solar cells has effect on the graphene structure market Tin sulfide (SnS) is a kind of abundant, safe and environmentally friendly solar cell material. The cheap material is expected to…
Other five kinds of water-reducing agents: sulfamate high-efficient water reducer, fatty acids high-efficient water reducer, HSB aliphatic superplasticizer, powder polycarboxylate, casein will be introduced.…
GH4049 is a Ni-Co-Cr-based deposition hardening deformation superalloy, the application temperature is lower than 950℃.…