JB/T 2974-1993 Supplementary provisions for the code method of rolling bearings JB/T2974-1993 standard download decompression pass

This standard specifies the rolling bearing codes not specified in GB/T 272-1993 and is a supplement to GB/T 272-1993. This standa

JB/T 2967.1-1999 This standard adopts the corresponding test items in ISO 7008 "Terms and acceptance conditions for single saw bla

This standard specifies the performance test method for sputtering ion pumps. This standard applies to ion pumps with a pumping sp

JB/T 2960-1999 This standard is a revision of JB 2960-81 "Types and Basic Parameters of Aisle Stacking Cranes". During the revisio

JB/T 2956.2-1999 This standard is a revision of JB 2956.2-85 "Sintered Corundum Whetstone". According to the requirements of GB/T

JB/T 2956.1-1999 This standard is a revision of JB 2956.1-85 "Sintered corundum grinding wheel". According to the requirements of

JB 8082-1999 This standard is a revision of JB 8082-95 "Safety Technical Conditions for Finger-Guard and Shield-Type Woodworking P