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China Ductile Iron Flexible Wide Range Universal Coupling for PVC, Di, Steel Pipe, Find details about China Universal Coupling, Pipe Fitting from Ductile Iron Flexible Wide Range Universal Coupling for PVC, Di, Steel Pipe - Qingdao Judibode Trading Co., Ltd.
End rings | ductile iron |
Middle sleeve | carbon steel |
Gasket | EPDM |
Bolts,nuts and washers | gal.steel/hot dip galvanized carbon steel;Stainless steel SS304/SS316 |
Coating | FBE /nylon 11 |