请专业人士帮帮忙,我是刚外贸,这些是什么意思.。
316 sheet of 0.25 mm thick and 4.5 mm corrugation with gray PVF (Tedlar – Surface emissivity 0.85) coating – 2,900 Sq.m
316L sheet of 0.8 mm thick with 15.8 mm X 63 mm Corrugation
316 sheet of 0.4 mm thick and 4.5 mm corrugation with gray PVF (Tedlar – Surface emissivity 0.85) coating
不知道是什么意思,请各位帮帮忙。