ASSEMBLY SCREW / INSERT SCREW

JASA COATING:

ELEKTRO GALVANIS (UCP PUTIH/ KUNING)

HOT DIP GALVANIS
FLOUROCARBON COATED
CADMIUM PLATE

COATING BLACK

NIKEL

CHROME

HEAT TREATMENT / HARDEN

TEMPERING HITAM/ BLACK OIL

DACROMATE (500 JAM)