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Dear sir, how are you? thanks for yourreply. I am glad to recommend our products to you. we are one of largest piston manufacturers in china. our all pistons products are oem quality products. and we have ISO/TS16949 certification. in china,our all products are all sold to directly to auto engine factories,motorcycleengine factories,and gasoline engine factories,and so on.we only have several models you needed,please make reference the attach our best price and our some catalogue. in china,it has been more than 50 years to produce pistons in our company.we startto producealuminium alloy piston from 1990 year. we have best technical experience and best quality. so,it is good if you select our company. in another hand,we hope you can visit our company to inspect our production workshop,inspect faclities,companyscale,and so on. I am sure you must be satsfied with our company. we have the following information for your checking: 1.material:AC8A;AC9A;ZL109;and so on. we can produce pistons according your material requirement. 2. certification:ISO/TS16949 3. T6 heat treatment 4. surface treatment: a:teflon b: anodizing c: planting tin on the surface of the piston d: the roof of the piston is dealt with ceramics e: phosphating if you want to know more information,please make reference the following our website: http://www.jhpiston.com thanks and look forward to your early reply. best regards, MS JUCY QUFU JINHUANG PISTON CO.,LTD