The high grade and efficient filter of company of Er of graceful · introduced from the northern and western nationalities or from abroad silent and water depart solution are the crucial factor that its accord with Europe Ⅲ tail ga...
Announced recently, domestic steelworks issued standard of stainless steel new name, through trade off study, on new name and old name label do not have basically too upheaval, main chemical element label did not change, only carbolic...
GB 10890-89 Methods Of Measuring And Evaluating Noise Of Pumps Level of power of the sound in this standard determines methodological equivalent uses international standard ISO 3746-1979 " acoustics, level of power of noise sour...
1 theme content and suitable scopeThis standard set bittern acting alkyl the performance demand of a powerful person of extinguishing system choice and experiment method. This standard applies to bittern acting alkyl 1301 with bittern...
World each country has level of his graphic symbol of hydraulic pressure pneumatic. The standard that our country implements at present is GB/T 786. 1-1993 " graphic symbol of hydraulic pressure pneumatic " , this standard provi...
The standardization list that dominates a powerful person or family is the following now 4 respects: (1) to realize interchangeability, the control a powerful person that makes the different manufacturer of similar measure and no...
Level of new nation of material of 7 plastic pipes and pipe fitting was carried out formally already a few days ago, as we have learned, issuance national standard it is to consult international metric system is decided, reach the cha...
Introduction: SOA international standard is main wait for organization of many international standard to release by W3C, OASIS, WS-I, OMG, each standard organization is put in a variety of descriptions to SOA standard,...