A piston is a component of reciprocating engines, reciprocating pumps, gas compressors and pneumatic cylinders, among other similar mechanisms. It is the moving component that is contained by a cylinder and is made gas-tight by piston rings. In an engine, its purpose is to transfer force from expanding gas in the cylinder to the crankshaft via a piston rod and/or connecting rod. In a pump, the function is reversed and force is transferred from the crankshaft to the piston for the purpose of compressing or ejecting the fluid in the cylinder. In some engines, the piston also acts as a valve by covering and uncovering ports in the cylinder
original WP4 WP6 WP12 weichai diesel engine parts
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4. after sending, we will track the products for you once every two days, until you get the products. When you got the goods, test them, and give me a feedback.If you have any questions about the problem, contact with us, we will offer the solve way for you
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5) Sample order is accepted.
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A: Generally, we pack our goods in neutral white boxes and brown cartons. If you have legally registered patent,
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Q2. What is your terms of payment?
A: T/T 30% as deposit, and 70% before delivery. We'll show you the photos of the products and packages
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Q3. What is your terms of delivery?
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Q4. How about your delivery time?
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Q6. What is your sample policy?
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Q7: How do you make our business long-term and good relationship?
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