Stainless steel pipe fittings Features: Ex logo ExdII; made of high-quality carbon steel, zinc plated or stainless steel. Thread can be tailor-made according to user requirements, can choose three sizes: one within an outer; double thread; dual external threads. Comply with GB3836-2000, IEC60079 standard request. Quality assurance: the date when product quality problems one year warranty, three-year replacement of the product purchase. Proof fittings Ordering Information: Order proof fittings should specify thread size and marked internal and external threads. Stainless steel pipe fittings