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Q 286-1999

Square set screws with long dog point

Q 288-1999

Hexagon socket set screws with cone point

QC/T 382-1999

Slotted cone plug

Q 614B-1999

Square head bolts

Q 614B-1999

Square head semi-tubular bolts

QC/T 379-1999

Square head bolts

QC/T 379-1999

Tapered square head bolts

Q 617B-1999

Hexagon head plugs

QC/T 376-1999

Hexagon head plug

Q 618B-1999

Hexagon taper plugs

Q 618B-1999

Hexagon semi-tubular taper plugs

QC/T 381-1999

Hexagon taper plug

QC/T 381-1999

Hexagon semi-tubular taper plug

QC/T 381-2013

Hexagon taper plug

QC/T 381-2013

Hexagon semi-tubular taper plug

QC/T 378-1999

Inner hexagon conical screw plug

Q 620-1999

Magnetic core

Q 621-1999

Square groove tapered magnetic plugs

QC/T 384-1999

Square groove tapered magnetic plug

Q 622-1999

Hexagon outside head cone plugs with magnetic core(dz≤NPT1)