rubber industry 6 [vynechat] priemysel kaučuku 3 [vynechat] príemysel kaučuku 3 [vynechat] extruders 2 [vynechat] injection moulding 2 [vynechat] vstrekovanie plastov 2 [vynechat] vytlačovacie stroje 2 [vynechat] robotnícke hnutie 1 [vynechat] social change 1 [vynechat] sociálna zmena 1 [vynechat] strikes and lockouts 1 [vynechat] working class movement 1 [vynechat] štrajky 1 [vynechat]