管规号 schedule number

通用规号 commercial designation

合国危规号码 UN CODE NO

美国压力管规号码 American code for pressure piping

惠氏规号 [材] Whitworth gauge

型号规号 Model Specifications

规格型号 Specifications ; Model ; ITEM ; Product model

产品规格型号报告 product specific report ; product specificine report ; nbspproduct specification report

型号规格 Model Specifications ; Type And Specification ; Model and specification ; Type specification

符号规约 [光] sign convention ; sign assemblage