型号 SS-PEG6-4-6SS-PEG8-4-8SS-PEG8-6-8SS-PEG10-16-10SS-PEG10-8-10SS-PEG12-8-12SS-PEG12-10-12SS-PEG16-12-16
SS-PEW4-6-4SS-PEW6-8-6SS-PEW8-10-8SS-PEW10-12-10