Omupiira oguyamba mu ngeri eya bulijjo mulimu bino wammanga: butto, obuwunga, pawuda omusiigiddwa, ne batch ya mater.
Rubber chemical pre-dispersed (mater batch) Zikoleddwa mu myaka gya 1940, okufulumya amakolero okutandika mu myaka gya 1980, $literal mass industrial production mu 90 era nga zimanyiddwa buli muntu mpolampola okutuusa nga 2003.
Waliwo amakolero agamu gayinza okugabira mater batch goods mu China. SunnyJoint era efulumya master batch mu katale k’ensi yonna, nga Russia, Turkey, Brazil etc.
