I have however, spotted some odd data in the category:
 
List of importing markets from Organisation for Economic Co-operation
and Development (OECD) for a product exported by Malaysia
Product : 721720 Wire of iron or non-alloy steel, zinc plated/coated".

That shows unit values varying from USD$4.40 and US$59 per tonne,
whereas the world and other is US$241 to US$1,123 per tonne.
 
I think there are some errors in the Australian data in particular.
Would you look into that please

> As it happens however, the 2007 data at comtrade.un.org is also, and
> remains incorrect.
> 
> For example, the exports of Malaysian 7217.20 to World calculates to
> US$241 per tonne or US 24 cents per kg (this is from US$53,916,363
> value divided by 223,494,812kg), but Australia calculates to US$58.
> 86 per tonne or US 6 cents per kg (this is from US$6,089,260 value
> divided by 103,425,592kg).
> 
> In fact the whole data set is wrong, as the unit value per tonne
> will actually be somewhere around US$900 per tonne or more – a fact
> I am sure about as we make that particular galvanized wire product 7217.20
> 
> Is it possible for the correct Malaysian 7217.20 export data to be found?

Data Reference: Malaysia 2007 was received on 31 March 2008; published on 8 April 2008

Following your question about iron/non-alloy steel. We got the reply from Malaysian Department of Statistics. (see email below / attachment).

The data provided to us was provisional and it seems there is a mistake in the quantity of iron/non-alloy steel. We have asked them for the revised data.

Answer from Data Provider (Departement of Statistics, Malaysia)

Attached is the data compiled by DOSM for 2007(PROVISIONAL)

We have check our data and the range of such commodity is from

RM1,700-6,900 or USD 515-2,090 per tonne depending on country of Origin

dan Destination.

Furthermore the data in Comtrade are provisional status which are

details not fully validated 100%. Only selected codes were validated

such as major commodities i.e:  Petroleum, Crude Palm Oil and Cocoa

Beans.

I hope this will answer your queries and for any further clarification,

please do not hesitate to contact me.