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•Material: GG25 cast iron, Ductile iron, Steel.
•Bore type: QD bush bore, Taper bush bore, Pilot bore.
•Surface treatment: Black Phosphating, Electrophoresis paint.
• Dynamic balance test: Pengtuo pulleys are balanced to Q6.3 or higher, allowing them to run at peripheral (rim) speeds up to 40 m/s
We shandong yacheng petroleum technology are established in 2003 year, located in Dongying city, shengli oilfield,which is second largest oilfield of China.
1) About Packing Inner packing: white box, color boxes (upon request), Outer packing: cartons or pallets
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