\usepackage[style=numeric,sortcites,maxbibnames=6,url=false, doi=false, isbn=false,block=none,mincrossrefs=100]{biblatex}
\addbibresource{biblio.bib}
+
+% Change volume.number format to volume(number)
+\renewbibmacro*{volume+number+eid}{%
+ \printfield{volume}%
+% \setunit*{\adddot}% DELETED
+% \setunit*{\addnbspace}% NEW (optional); there's also \addnbthinspace
+ \printfield{number}%
+ \setunit{\addcomma\space}%
+ \printfield{eid}}
+\DeclareFieldFormat[article]{number}{\mkbibparens{#1}}
+
+% Remove parentheses around year
+\renewbibmacro*{issue+date}{%
+ \setunit{\addcomma\space}% NEW
+% \printtext[parens]{% DELETED
+ \iffieldundef{issue}
+ {\usebibmacro{date}}
+ {\printfield{issue}%
+ \setunit*{\addspace}%
+% \usebibmacro{date}}}% DELETED
+ \usebibmacro{date}}% NEW
+ \newunit}
+
\newbibmacro{string+doiurlisbn}[1]{%
\iffieldundef{doi}{%
\iffieldundef{url}{%