The Applicant has now found that by selecting a suitable polyolefin material, in particular a copolymer of polypropylene with a C4 C8 α olefin, it is possible to avoid or at least substantially reduce the above shape variations of the extruded component, in particular of {HEAD ~ a buffer tube} containing {TAIL ~ optical fibers} 
containing
The Applicant has now found that by selecting a suitable polyolefin material , in particular a copolymer of polypropylene with a C4 C8 α olefin , it is possible to avoid or at least substantially reduce the above shape variations of the extruded component , in particular of { HEAD ~ a buffer tube } containing { TAIL ~ optical fibers }
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL