GEBR. JONK B.V. ni mtoa ya bidhaa na huduma kama vile kuwepo vitambaa,kitani,poda pumzi, feather,toothpicks, mcheche,manyoya na chini, mbichi,kulala mifuko, quilted, feather kujazwa,duvets, feather kujazwa,quilts na eiderdowns, feather kujazwa,mito na inatia, feather kujazwa,mto usafi, feather kujazwa,matakia, feather au chini kujazwa,manyoya na chini, amevaa,manyoya na chini, bleached,manyoya na chini, rangi,manyoya na chini, kujitakasa,manyoya, jogoo, kuku, goose na bata,manyoya na chini kwa ajili ya upholstery,manyoya na chini kwa matandiko,manyoya kwa toys na shuttlecocks,pram seti, feather kujazwa,dusters, feather,swan quills na quills kuiga,manyoya, kigeni ndege,manyoya, marabou,manyoya, mbuni,moto mashabiki, feather,mavazi trimmings na vifaa, feather,manyoya, mapambo, kwa ajili ya mavazi,boaz, mbuni feather.