Peb lub tuam txhab tsuas yog tsim bolts, txiv ntseej thiab lwm yam khoom uas ua raws li American Standard, British Standard, German Standard, Japanese Standard thiab lwm yam qauv.
Bolts muaj xws li:
Siab zog bolts xws li DIN933 / DIN931 / DIN7991 / DIN912 / DIN6921 / ISO7380
Cov txiv ntoo muaj xws li:
Txiv ntseej series xws li DIN934/DIN985/DIN982/DIN6923/DIN315/DIN1587
Thov koj xav tiv tauj peb yog tias tsim nyog, ua tsaug.
