Screw flowmeter – Nihon Tescon Co., Ltd. / KRAL AG Screw flowmeter – Nihon Tescon Co., Ltd. / KRAL AG Screw flowmeter – Nihon Tescon Co., Ltd. / KRAL AG webmaster : 2012/8/30 4:13 Screw flowmeter – Nihon Tescon Co., Ltd. / KRAL AG