This standard specifies the main specifications for the drive shaft and shaft connection socket of the vinyl opener that winds the vinyl in agricultural greenhouses.
KS B 7929-1999 history
2019KS B 7929-2019 Dimensions of driving shafts and connecting sockets of vinyl roll-up-down device for greenhouses
1999KS B 7929-1999 Dimensions of driving shafts and connecting sockets of vinyl roll-up-down device for greenhouses