Die standard: formwork (GB/T2851-2861); steel formwork (JB/T7181-7188); parts and technical conditions (JB/T7642-7652); round punch and round die (JB/T5825-5830)
Plastic injection mold standard: parts (GB4169-4170); medium and small formwork and technical conditions (GB/T12556.1-2); large formwork and technical conditions (GB/T12555.1-15)
Die-casting mold standard: Die-casting mold parts and technical conditions (GB4678-4679)
Forging die standard: universal forging module size series and measuring method (JB/T5900)
Diamond wire drawing die (JB3944-85)
Die acceptance technical conditions (GB/T14662-93); die steel and heat treatment technical conditions (JB/T6058-92); die formwork technical conditions (JB/T8050-95); die formwork precision inspection (JB/T8071 -95).
Plastic injection mold acceptance technical conditions (GB/T12554-90); plastic sealing mold technical conditions (GB/T14663-93); plastic sealing mold dimensional tolerance requirements (GB/T14664-93); plastic mold forming part steel and its heat treatment technical conditions (JB/T6057-92); plastic molding die profile type and roughness (JB/T7781-95)
Die casting mold acceptance technical conditions (GB8844-88)
General technical conditions for roll forging die (ZB/TJ46003-90); technical conditions for fastener cold heading die (JB/T4213-96); steel for cold forging die and heat treatment technical conditions (JB/T7715-95); hot forging Die steel and its heat treatment technical conditions (JB/T5823-91)
Polycrystalline diamond wire drawing die technical conditions (JB/T5823-91); hard alloy wire drawing die technical conditions (JB/T3943-85)
Rubber mold technical conditions (JB/T5831-91)
Glass product mold technical conditions (JB/T5785-91)
Plastic injection mold standard: parts (GB4169-4170); medium and small formwork and technical conditions (GB/T12556.1-2); large formwork and technical conditions (GB/T12555.1-15)
Die-casting mold standard: Die-casting mold parts and technical conditions (GB4678-4679)
Forging die standard: universal forging module size series and measuring method (JB/T5900)
Diamond wire drawing die (JB3944-85)
Die acceptance technical conditions (GB/T14662-93); die steel and heat treatment technical conditions (JB/T6058-92); die formwork technical conditions (JB/T8050-95); die formwork precision inspection (JB/T8071 -95).
Plastic injection mold acceptance technical conditions (GB/T12554-90); plastic sealing mold technical conditions (GB/T14663-93); plastic sealing mold dimensional tolerance requirements (GB/T14664-93); plastic mold forming part steel and its heat treatment technical conditions (JB/T6057-92); plastic molding die profile type and roughness (JB/T7781-95)
Die casting mold acceptance technical conditions (GB8844-88)
General technical conditions for roll forging die (ZB/TJ46003-90); technical conditions for fastener cold heading die (JB/T4213-96); steel for cold forging die and heat treatment technical conditions (JB/T7715-95); hot forging Die steel and its heat treatment technical conditions (JB/T5823-91)
Polycrystalline diamond wire drawing die technical conditions (JB/T5823-91); hard alloy wire drawing die technical conditions (JB/T3943-85)
Rubber mold technical conditions (JB/T5831-91)
Glass product mold technical conditions (JB/T5785-91)
The round head Bolt has only one head shape with a slot, and the semicircular Screw head is exposed to the installed surface after installation.
Round Head Bolt,Round Head Allen Bolt,Round Head Bolt And Nut,Round Head Square Neck Bolt
Jiangsu Jiajie Special Screw Co., Ltd , https://www.jiajienuts.com