Supplier: Coal tar, alkatra., wood preservative oil., Bleaching powder/calcium hypochlorite., red oxide., bentonite., coal tar pitch., mosquito repellent of all sorts ( in house flavored spray / outside drain spray and outside smoke) ., black japan paint., all types of chemicals for industrial purpose., compression fittings (may it be brass/stainless steel or forged material)., rubber hose of all pressure (high or low).