IC设计SPEC定义的方法，这个对SA特别重要，很有参考意义-IC design method of defining the SPEC, this is especially important to SA, is of great reference significance

3.2,3.7 sepc.it include 3.2 spec.and 3.7 spec.HVA32WV1-D00 Product Specification(Rev A),HVA37WV1-D01 ProductSpec-3.2,3.7 sepc.it include 3.2 spec.and 3.7 spec.HVA32WV1-D00 Product Specification(Rev A),HVA37WV1-D01 ProductSpec

LG4573A_DS_V1.1.5,it include lg4573A s spec.

APIspec11D1-第3版封隔器和桥塞 ANSI/API SPEC 11D1 第3版，2015年4月 2015年10月9日实施 ISO14310:2008（修订）， 石油天然气工业-井下工具-封隔器和桥塞(APIspec11D1-third edtion)