D&H Sécheron Electrodes Pvt. Ltd offers Lotherme GS - 633. D&H Sécheron Electrodes Pvt. Ltd is an ISO 9001:2000 certified company. The Lotherme GS - 633 is a medium alloy gas shielded wire designed for air hardening type hard surfacing deposit. It is suitable for weld-surfacing and reclamation of agricultural equipments, excavator components, conveyor buckets and screws etc.