Gold Member Since 2010
Audited Supplier
Puyang Zhongshi Group Co., Ltd.

API Valve Balls and Valve Seats, Cobalt Alloy Balls and Seats, Sucker Rod Pumps Valve Balls and Valve Seats manufacturer / supplier in China, offering API V11-175 Stellite Valve Balls and Valve Seats, API Composite Casing Centralizer, Spiral Polyamide Nylon Rigid Centralizers, Slip-on Solid Body Spiral Roller Rigid Centralizer for Drilling and so on.

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