... .Main parts materialsPartsMaterialPartsMaterialbodyA105, WC9 etc.packingFlexible graphiteseat ring gasketFlexible graphite+mesh boardglandASTM A182 F316, A276seat ringASTM A276 431stemASTM A182 F316, A276spiral ... 1045discFlexible graphite+316bonnetA216 WCB, 316 etc.bonnet gasketFlexible graphite+mesh boardcage gasketFlexible graphite+mesh boardmain nutsASTM A29 1045main boltsASTM B7Notice: We can ...