B2 General industrial - Use for industrial process other than one falling within class B1 (excluding incineration purposes, chemical treatment or landfill or hazardous waste).
B2 Diwydiannol cyffredinol – Defnyddir ar gyfer proses ddiwydiannol heblaw un sy’n perthyn i ddosbarth B1 (ac eithrio gwaith llosgi, gwaith trin â chemegion, gwaith tirlenwi neu wastraff peryglus).