documentclass{article}

usepackage{filecontents}
begin{filecontents*}{product.tex}
%Type =1,2...10
No,Type,Name,Description
1,1,A1,D1
2,1,A1,D2
3,1,A1,D3
30,1,A1,D30
31,2,A2,D31
131,2,A2,D131
132,3,A3,D132
133,3,A3,D133
134,3,A3,D134
249,4,A4,D249
1000,10,A10,D1000
end{filecontents*}

usepackage{datatool}

DTLloaddb[autokeys=false]{products}{product.tex}

newcommand{printtype}[1]{%
  par
  section*{Type #1}
  DTLforeach*
    [DTLiseq{Type}{#1}]% Condition
    {products}% Database
    {No=No,Type=Type,Name=Name,Description=Description}{%
    noindentName quad Descriptionpar
  }%
}

begin{document}

%Here is some text.

printtype{1}

Some breaking text here.

printtype{3}

And then some final text.

end{document}