Longtech Precision is a manufacturer/Trading company for products used in semiconductor & related industry.We are a Chinese company specializing in the manufacture and export of Metal Film Frames both in DISCO standard and K&S standard which dimensions includes 4", 5", 6", 8", 12" etc. we could provide you totally satisfying price with eligible quality you required.With over 3 years of experience in wafer frame (wafer ring) manufacturing, Long-tech is a qualified and experienced provider of many different types of testing and packaging fields. It창��s main customers cover many famous semiconductor assembly &test industrial companies, includes Stats Chippac, KaiHong, AMKOR, etc. We will be happy to give you a quotation upon receipt of your detailed requirements.