˙Plastic porcelain plate is made of PP mixed material, so high-temperature objects are not allowed
BK-551 Plastic porcelain plate for BK-550 140.5x7mm
BK-231 Plastic porcelain plate for BK-230 189x7mm
BK-553 Plastic porcelain plate for BK-554 238x7mm
BK-555 O-ring for BK-550
BK-556 O-ring for BK-230
BK-557 O-ring for BK-554
BK-229 Vacuum stopcock for BK series