中文意思不清楚如何用英文表達, 請幫忙!

Dear Sir,

We have checked the latest product specification for model 1011, our colleague found that the color on the product specification have changed to A colour, however, our record for this model should be B colour. Please clarify which colour is correct.

Best regards
XXX

我們師傅發現1011 (1011=產品款式item), 於最新的規格表(規格表即該款產品詳細資料=product spec.)內布料的顏色 與最早期貴公司提供的資料不一樣
請告知哪個為正確?

Our technical staff discovered that the colour of the fabric regarding the specification stated in item 1011 in the most updated specification form is different with the one previously submitted by your company. Please advise which one is correct ?