请问HGT 和W/R表示?W/R:1000G+ ,700-1000G IQF/IWPHGT:300/500,500/70

Arrow tooth flounder, CNF China $0.78 per lbs. (40% large over 900g, 60% med 500-900g) HGT FAS , 10kg block frozen, stored in 20kg bags – immediate availability - 600 tons ( 1,200,000 lbs.) 2. 多佛比目鱼Dover Sole, CNF China $0.71 per lbs. W/R, 10kg block frozen, stored in 20kg bags – immediate availability - 80,000 Lbs. 3. 太平洋大比目鱼Pacific Halibut, CNF China $8.01 per lbs. H/G FAS IQF, size range: -20 to 50+ lbs. per fish – immediate availability - 50,000 lbs. 请教前辈,其中,HGT, W/R,H/G 是什么意思?还有10kg block frozen, stored in 20kg bags 和size range: -20 to 50+ lbs要怎么翻译?急呀,我刚接手水产品的外贸